US2579097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for brazing
Assignee: Individual
•
Filing: 1948-06-11
•
Granted: 1951-12-18
•
Expires: 1968-06-11
Abstract
No abstract record available.
Inventors
- 👤 Frank W Schwinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:45
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/002; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/348
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191000536A
Cited
US474584A
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US679082A
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US793958A
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US1651891A
Cited
FR581481A
Cited
US1823028A
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US2117107A
Cited
US2151533A
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CH226058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |