Patent US2622667A successfully refreshed from Google Patents.
US2622667A
Expired / Lapsed
US
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Blowtorch
Assignee: Individual
•
Filing: 1947-11-14
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Granted: 1952-12-23
•
Expires: 1967-11-14
Abstract
No abstract record available.
Inventors
- 👤 Hinton Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:13
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/38; F23D14/42; F23D14/46; F23D14/465
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1606013A
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DE551210C
Cited
US1097263A
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FR456313A
Cited
US1291864A
Cited
US1808967A
Cited
DE539216C
Cited
US2072626A
Cited
US2204756A
Cited
US2223720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |