Patent US1775489A successfully refreshed from Google Patents.
US1775489A
Expired / Lapsed
US
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Signaling system
Assignee: Reserve Holding Co
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Filing: 1929-03-30
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Granted: 1930-09-09
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Expires: 1949-03-30
Abstract
No abstract record available.
Inventors
- 👤 Roy F Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:08
CPC Classifications
G; G08; G08B; G08B7/00; G08B7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1933-09-08 | 1934-03-10 | 1934-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-09-08 | 1938-03-10 | 1938-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-09-08 | 1942-03-10 | 1942-09-09 | $7700.00 | Window Closed / Lapsed |