US2481150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock-absorbing apparatus
Assignee: Individual
•
Filing: 1946-09-19
•
Granted: 1949-09-06
•
Expires: 1966-09-19
Abstract
No abstract record available.
Inventors
- 👤 Robert T A Pifer
- 👤 Lewis W Pifer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:37
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/32; B64C25/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1112705A
Cited
GB166962A
Cited
GB168692A
Cited
US2174315A
Cited
GB556148A
Cited
US2357278A
Cited
US2410176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |