US2730983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming cemented lock and lap side seams having welded lap portions
Assignee: Primerica Inc
•
Filing: 1952-12-11
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Granted: 1956-01-17
•
Expires: 1972-12-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Denis J Campbell
- 👤 Edward W Kaiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:09
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/14; B23K1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1542663A
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US1628928A
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US1867857A
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US2124004A
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US2093056A
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US2266702A
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US2342109A
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US2424188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |