Patent US2816532A successfully refreshed from Google Patents.
US2816532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam
Assignee: Individual
•
Filing: 1954-06-03
•
Granted: 1957-12-17
•
Expires: 1974-06-03
Abstract
No abstract record available.
Inventors
- 👤 William T Ratliff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:40
CPC Classifications
F; F16; F16H; F16H53/00; F16H53/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US418418A
Cited
US599496A
Cited
US674709A
Cited
GB191105690A
Cited
US1784421A
Cited
US1763563A
Cited
US2032542A
Cited
US2049253A
Cited
US2117551A
Cited
US2391972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |