US2911511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot water heater
Assignee: Individual
•
Filing: 1957-09-11
•
Granted: 1959-11-03
•
Expires: 1977-09-11
Abstract
No abstract record available.
Inventors
- 👤 Edward P Megarry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:10
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/10; F24H1/12; F24H1/121; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87338; Y10T137/87362
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US861811A
Cited
US942874A
Cited
US1889747A
Cited
US2434928A
Cited
US2514050A
Cited
US2775259A
Cited
US2694768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |