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US2482949A
Expired / Lapsed
US
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Concrete pipe forming machine
Assignee: Individual
•
Filing: 1946-03-29
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Granted: 1949-09-27
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Expires: 1966-03-29
Abstract
No abstract record available.
Inventors
- 👤 Tankovich Nicholas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:16
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/02; B28B21/10; B28B21/22; B28B21/30; B28B21/76; B28B21/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1504834A
Cited
US1523937A
Cited
US1750138A
Cited
US2189071A
Cited
US2251785A
Cited
US2291680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-26 | 1953-03-28 | 1953-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-26 | 1957-03-28 | 1957-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-26 | 1961-03-28 | 1961-09-27 | $7700.00 | Window Closed / Lapsed |