US2455306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally responsive unit
Assignee: Bryant Heater and Manufacturing Co
•
Filing: 1944-03-29
•
Granted: 1948-11-30
•
Expires: 1964-03-29
Abstract
No abstract record available.
Inventors
- 👤 Frank R Higley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:38
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; Y; Y10; Y10T; Y10T428/00; Y10T428/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US361899A
Cited
US1193637A
Cited
US1666413A
Cited
US873511A
Cited
US914859A
Cited
GB213596A
Cited
US1812788A
Cited
US1991495A
Cited
US1987166A
Cited
US2122325A
Cited
US2086857A
Cited
US2185436A
Cited
US2204781A
Cited
US2361530A
Cited
US2354655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |