At a glance
| Patent number | CN216534262U (application CN202122614919) |
| Type | China utility model (实用新型) - protects product shape and structure |
| Original title | Spine-friendly backpack with built-in skeleton (一种脊柱友好型内置骨骼背包) |
| Patent owner | Zhang Jiaojiao (张娇娇), individual |
| Inventor | Zhang Jiaojiao |
| Priority date | 2021-08-02 (Chinese application CN202110878661) |
| Filing date | 2021-10-28 |
| Grant date | 2022-05-17 |
| Status (China) | In force - no termination recorded; a China utility model lasts at most 10 years from filing (to 2031-10-28) |
| Patent family | Chinese filings only - no US, European, Japanese, PCT or other filings listed |
| Cited by | 1 later document |
| Source | Google Patents (search for CN216534262U) |
What the claims cover, in plain language
Claim 1 - a backpack with a bag body and an inner support frame inside it that supports the bag; bag and frame are separate parts of matching size; the frame fits against the waist and back and spreads the load carried by the waist, back and shoulders.
Claims 2-4 - the frame is an enclosure and a base plate in one piece (claim 2); the enclosure fits the back and the base plate fits the posterior superior iliac spine (back of the pelvis) and carries the load (claim 3); the enclosure has a spine part and a waist part that wraps from the center line toward the front ribs (claim 4). Claim 5 - criss-cross connecting ribs on the base and enclosure. Claim 6 - the shapes are measured by CT. Claim 7 - frame material: polyethylene, polypropylene, PVC, stainless steel or aluminum alloy. Claims 8-10 - the bag has a frame, a compartment and a back panel zipped along its edges (claim 8); a harness with one-piece shoulder straps and adjustable fixing straps (claim 9); and two cross straps at the level of the lower breastbone (claim 10).
This is a simplified reading for orientation only. The legal scope is defined by the exact claim wording in the official Chinese document.
What this means for US production
This patent was filed only in China. It is still in force in China, so making or selling this design in China would need the owner’s permission while it lasts (at most until 2031-10-28). It has no US or other foreign counterpart and does not restrict the design outside China.
Before production, keep in mind:
- Other patents may exist. Framed and ergonomic backpacks are made by many outdoor and bag brands, some with US patents on frames and suspension systems. Use your own frame styling and have a freedom-to-operate (FTO) search done by a US patent attorney before volume production.
Customization and manufacturing
What can be customized
| Area | Options |
|---|---|
| Size | Daypack, commuter or travel sizes, with frames sized to match - to be confirmed in design |
| Frame | Molded PP/PE plastic or aluminum; frame sizes for different torso lengths |
| Bag | Fabric, compartments, laptop sleeve, water-resistant coating |
| Harness | Padding, chest strap style, hip belt option |
| Colors & branding | Brand colors, logo, licensed prints |
| Packaging | Polybag with hangtag or retail box |
Things to plan for (US market)
- Marketing claims - describe comfort and load distribution; claims about treating or preventing back problems may make the product a regulated medical device and need evidence.
- Children’s products - a version for children 12 and under needs CPSIA testing, a Children’s Product Certificate and tracking labels.
- Materials and labels - fiber content and country-of-origin labels; check coatings against California Proposition 65.
How a project runs
- Inquiry - bag type, size range and quantity.
- Design - frame shape and sizes, bag pattern, harness.
- Prototype - samples for fit, load and wear tests.
- Pilot run - small batch to check frame molding and sewing.
- Production - volume production, packaging and shipping.
Quantities & timeline
A plastic frame needs an injection or blow mold per size; the bag is cut-and-sew. Send us your bag type, sizes, quantity and target price and we will reply with options.
Patent drawings
Drawings reproduced from the public patent document for reference.
