US2897467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheathed tubular electrical heater
Assignee: Motors Liquidation Co
•
Filing: 1955-05-04
•
Granted: 1959-07-28
•
Expires: 1975-05-04
Abstract
No abstract record available.
Inventors
- 👤 Robert D Bremer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:17
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/42; H05B3/48; H05B3/52; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087; Y10T29/49089; Y10T29/49091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2362074A
Cited
US2460795A
Cited
US2596325A
Cited
US2489998A
Cited
US2643317A
Cited
US2670529A
Cited
US2632833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |