US1332933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic cushion
Assignee: RUBBER REGENERATING CO
•
Filing: 1916-05-12
•
Granted: 1920-03-09
•
Expires: 1936-05-12
Abstract
No abstract record available.
Inventors
- 👤 Edwin S Sylvester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:52
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/12; A47C27/128; Y; Y10; Y10S; Y10S5/00; Y10S5/948; Y10S5/949
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1923-03-09 | 1923-09-08 | 1924-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-03-09 | 1927-09-08 | 1928-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-03-09 | 1931-09-08 | 1932-03-09 | $7700.00 | Window Closed / Lapsed |