US2973979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key
Assignee: Individual
•
Filing: 1958-02-26
•
Granted: 1961-03-07
•
Expires: 1978-02-26
Abstract
No abstract record available.
Inventors
- 👤 Musser C Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:09
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0876; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7021; Y10T403/7024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US309142A
Cited
US368744A
Cited
US438283A
Cited
US1323172A
Cited
US921401A
Cited
US1175100A
Cited
US1221709A
Cited
US1397530A
Cited
US2807485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |