US2487556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus
Assignee: Honeywell Inc
•
Filing: 1945-10-08
•
Granted: 1949-11-08
•
Expires: 1965-10-08
Abstract
No abstract record available.
Inventors
- 👤 George F Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:49
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/1906; G05D23/1909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1276589A
Cited
GB144669A
Cited
US1407411A
Cited
US1715750A
Cited
US2148491A
Cited
DE640150C
Cited
US2209610A
Cited
US2278633A
Cited
US2292975A
Cited
GB557707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |