US2604571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering gun
Assignee: Calspan Corp
•
Filing: 1946-10-31
•
Granted: 1952-07-22
•
Expires: 1966-10-31
Abstract
No abstract record available.
Inventors
- 👤 Howard W Naulty
- 👤 Malcolm N Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:11
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2210352A
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US2162615A
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GB494419A
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US2221646A
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US2228291A
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US2251557A
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US2260030A
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US2295195A
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GB556835A
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US2433514A
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US2396799A
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US2454875A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |