US2417103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-fired unit heater
Assignee: Individual
•
Filing: 1943-04-01
•
Granted: 1947-03-11
•
Expires: 1963-04-01
Abstract
No abstract record available.
Inventors
- 👤 Cohn Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:16
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/06; F24H3/10; F24H3/105
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1387827A
Cited
US1723716A
Cited
US1788158A
Cited
US1843451A
Cited
US1935072A
Cited
US1943596A
Cited
US2131221A
Cited
US2157107A
Cited
US2173280A
Cited
US2267905A
Cited
US2292180A
Cited
US2313933A
Cited
US2324540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-10 | 1950-09-09 | 1951-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-10 | 1954-09-09 | 1955-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-10 | 1958-09-09 | 1959-03-11 | $7700.00 | Window Closed / Lapsed |