US1604342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic heat-regulating apparatus
Assignee: Individual
•
Filing: 1925-04-22
•
Granted: 1926-10-26
•
Expires: 1945-04-22
Abstract
No abstract record available.
Inventors
- 👤 Greenhut Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:07
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/275; G05D23/1927; G05D23/193; G05D23/1931
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-10-25 | 1930-04-26 | 1930-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-10-25 | 1934-04-26 | 1934-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-10-25 | 1938-04-26 | 1938-10-26 | $7700.00 | Window Closed / Lapsed |