US2631640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making expansion joints
Assignee: Individual
•
Filing: 1948-12-10
•
Granted: 1953-03-17
•
Expires: 1968-12-10
Abstract
No abstract record available.
Inventors
- 👤 James P Zallea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:08
CPC Classifications
B; B21; B21D; B21D15/00; B21D15/04; B21D15/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US335371A
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US349718A
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US773046A
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GB190009889A
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US788119A
Cited
US1754922A
Cited
US2106495A
Cited
US2352038A
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US2372917A
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US2341002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |