US2713892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber bumper and contouring unit for chair seats
Assignee: General Fireproofing Co
•
Filing: 1954-08-26
•
Granted: 1955-07-26
•
Expires: 1974-08-26
Abstract
No abstract record available.
Inventors
- 👤 Howard W Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:42
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/18; A47C7/185; Y; Y10; Y10S; Y10S297/00; Y10S297/01; Y10S297/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US178613A
Cited
US1551452A
Cited
US2061054A
Cited
US2217754A
Cited
US2410727A
Cited
US2646840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-25 | 1959-01-24 | 1959-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-25 | 1963-01-24 | 1963-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-25 | 1967-01-24 | 1967-07-26 | $7700.00 | Window Closed / Lapsed |