US3471663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
String-operated switch construction
Assignee: F and F Enterprises Inc
•
Filing: 1967-05-16
•
Granted: 1969-10-07
•
Expires: 1987-05-16
Abstract
No abstract record available.
Inventors
- 👤 Guy M Farrell
- 👤 Richard B Gaber
- 👤 Matthew C Podgorski
- 👤 Morris N Whitlock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:15
CPC Classifications
H; H01; H01H; H01H15/00; H01H15/02; H01H15/06; H01H15/16; H01H15/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2932698A
Cited
GB924008A
Cited
GB957644A
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US3290463A
Cited
US3296389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |