US2751918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually or automatically actuated air-pressure-responsive controller
Assignee: Honeywell Inc
•
Filing: 1950-12-28
•
Granted: 1956-06-26
•
Expires: 1970-12-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Stephen P Higgins
- 👤 Pemberton H Drinker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:15
CPC Classifications
F; F15; F15C; F15C3/00; F15C3/04; G; G05; G05B; G05B11/00; G05B11/44; G05B11/58; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409; Y10T137/2452
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |