US3533113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-inflatable hollow bodies for use as cushions and for like purposes
Assignee: Individual
•
Filing: 1968-06-20
•
Granted: 1970-10-13
•
Expires: 1988-06-20
Abstract
No abstract record available.
Inventors
- 👤 Paul Stamberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:54
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/021; A47C27/00; A47C27/08; A47C27/081; A47C27/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US396242A
Cited
US2360715A
Cited
US2814053A
Cited
US3068494A
Cited
US3251075A
Cited
US3316567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |