US2978762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burn caster
Assignee: Individual
•
Filing: 1957-06-17
•
Granted: 1961-04-11
•
Expires: 1977-06-17
Abstract
No abstract record available.
Inventors
- 👤 Charles H Mcalpine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:39
CPC Classifications
B; B22; B22D; B22D25/00; B22D25/02; B22D25/04; H; H01; H01M; H01M50/00; H01M50/50; H01M50/531; H01M50/54; H01M50/541; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S164/00; Y10S164/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1719829A
Cited
US1797684A
Cited
US2454051A
Cited
US2612082A
Cited
US2660414A
Cited
US2799905A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |