US2548939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus
Assignee: Honeywell Inc
•
Filing: 1946-05-27
•
Granted: 1951-04-17
•
Expires: 1966-05-27
Abstract
No abstract record available.
Inventors
- 👤 Benjamin W Brion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:15
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/06; G05D7/0617; G05D7/0629; G05D7/0635
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1193488A
Cited
US1713833A
Cited
US1257468A
Cited
US1769358A
Cited
US1673041A
Cited
US1832809A
Cited
US2067645A
Cited
US2284984A
Cited
FR869118A
Cited
US2385664A
Cited
US2390487A
Cited
US2353201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |