Patent US4525266A successfully refreshed from Google Patents.
US3040141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal systems
Assignee: Individual
•
Filing: 1959-04-02
•
Granted: 1962-06-19
•
Expires: 1979-04-02
Abstract
No abstract record available.
Inventors
- 👤 Whidin Orvilla May
- 👤 Casimira H Steube
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:16
CPC Classifications
A; A47; A47G; A47G29/00; A47G29/12; A47G29/122; A47G29/1225; H; H01; H01H; H01H13/00; H01H13/02; H01H13/12; H01H13/14; H01H13/18; H01H13/183; A47G2029/1226; A47G2029/1229
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US498550A
Cited
US1442578A
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US1718471A
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US1808235A
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US2181829A
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US2424661A
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US2454341A
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US2413130A
Cited
US2463957A
Cited
US2547765A
Cited
US2648234A
Cited
US2904652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |