Patent US3523169A successfully refreshed from Google Patents.
US3523169A
Expired / Lapsed
US
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Two-position tubular lighted pushbutton construction
Assignee: Robertshaw Controls Co
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Filing: 1968-09-04
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Granted: 1970-08-04
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Expires: 1988-09-04
Abstract
No abstract record available.
Inventors
- 👤 Anthony A Di Pilla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:30
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/16; H01H9/161; H01H9/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2523125A
Cited
US3157771A
Cited
DE1150432B
Cited
US3197598A
Cited
US3249705A
Cited
US3268889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |