US2451778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermotemporal responsive device
Assignee: Individual
•
Filing: 1942-11-13
•
Granted: 1948-10-19
•
Expires: 1962-11-13
Abstract
No abstract record available.
Inventors
- 👤 Sambur William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:12
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/1902; G05D23/1904
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USRE16985E
Cited
US1921343A
Cited
GB446168A
Cited
US2136753A
Cited
US2220028A
Cited
US2257471A
Cited
US2291840A
Cited
US2274938A
Cited
US2344991A
Cited
US2308318A
Cited
US2298323A
Cited
US2344820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-19 | 1952-04-19 | 1952-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-19 | 1956-04-19 | 1956-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-19 | 1960-04-19 | 1960-10-19 | $7700.00 | Window Closed / Lapsed |