Patent NL6701157A successfully refreshed from Google Patents.
US3109075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skier alarm switch
Assignee: Individual
•
Filing: 1961-07-25
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Granted: 1963-10-29
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Expires: 1981-07-25
Abstract
No abstract record available.
Inventors
- 👤 Peary F Ratcliff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:19
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/022; H01H3/0226
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB398549A
Cited
US2790863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |