US2977814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-speed device
Assignee: Individual
•
Filing: 1960-06-22
•
Granted: 1961-04-04
•
Expires: 1980-06-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Glenn S Brunson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:13
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; G; G21; G21C; G21C7/00; G21C7/06; G21C7/08; G21C7/12; G21C7/16; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18568; Y10T74/18576; Y10T74/18672
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2253535A
Cited
US2247562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |