US2873755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-pressure-operated relay
Assignee: Honeywell Inc
•
Filing: 1954-01-11
•
Granted: 1959-02-17
•
Expires: 1974-01-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert C Whitehead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:43
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/185; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409; Y10T74/00; Y10T74/21; Y10T74/2142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1799131A
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US2212085A
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US2299884A
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GB562645A
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FR900424A
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US2399938A
Cited
GB604468A
Cited
US2612902A
Cited
US2626626A
Cited
US2618288A
Cited
US2652066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |