Patent US2529707A successfully refreshed from Google Patents.
US2529707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water heater for internal-combustion engines and the like
Assignee: Individual
•
Filing: 1946-11-12
•
Granted: 1950-11-14
•
Expires: 1966-11-12
Abstract
No abstract record available.
Inventors
- 👤 Bert H Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:31
CPC Classifications
F; F02; F02N; F02N19/00; F02N19/02; F02N19/04; F02N19/10; H; H05; H05B; H05B3/00; H05B3/02; H05B3/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1482574A
Cited
GB191011308A
Cited
US1258068A
Cited
US1724804A
Cited
US1825627A
Cited
US1765655A
Cited
US1857767A
Cited
US1844268A
Cited
US2401847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |