US3467123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid control system
Assignee: Robertshaw Controls Co
•
Filing: 1966-09-23
•
Granted: 1969-09-16
•
Expires: 1986-09-23
Abstract
No abstract record available.
Inventors
- 👤 Charles H Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:52
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/003; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2065; Y10T137/2071; Y10T137/212; Y10T137/2125; Y10T137/2147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2773506A
Cited
US2858075A
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US2985183A
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US3113582A
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US3115147A
Cited
US3193197A
Cited
US3339571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |