US2828801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient, yieldable seat
Assignee: Individual
•
Filing: 1950-10-31
•
Granted: 1958-04-01
•
Expires: 1970-10-31
Abstract
No abstract record available.
Inventors
- 👤 Papst Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:01
CPC Classifications
B; B62; B62J; B62J1/00; B62J1/02; A; A47; A47C; A47C3/00; A47C3/02; A47C3/021; A47C3/025; A47C3/0252; A47C7/00; A47C7/36; A47C7/40; A47C7/44; A47C7/445; B62J1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US640373A
Cited
US1122691A
Cited
GB113345A
Cited
FR655057A
Cited
US1998508A
Cited
US2058076A
Cited
US2537071A
Cited
US2597299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |