US2841999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap acting mechanism
Assignee: Penn Controls Inc
•
Filing: 1955-06-13
•
Granted: 1958-07-08
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Expires: 1975-06-13
Abstract
No abstract record available.
Inventors
- 👤 Earnest F Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:31
CPC Classifications
F; F16; F16H; F16H35/00; F16H35/14; H; H01; H01H; H01H5/00; H01H5/04; H01H5/06; H01H5/18; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |