Patent US3504339A successfully refreshed from Google Patents.
US3504339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal lamps
Assignee: Safety Products Co
•
Filing: 1967-02-14
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Granted: 1970-03-31
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Expires: 1987-02-14
Abstract
No abstract record available.
Inventors
- 👤 John J Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:55
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/34; B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/2611; B64; B64D; B64D47/00; B64D47/02; B64D47/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2017716A
Cited
US2492837A
Cited
US2731577A
Cited
US2738414A
Cited
US2936387A
Cited
US3184585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |