US2942644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube bending apparatus
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1955-09-21
•
Granted: 1960-06-28
•
Expires: 1975-09-21
Abstract
No abstract record available.
Inventors
- 👤 Beranek Rudolph Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:52
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/02; B21D7/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US165804A
Cited
US2636537A
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US690023A
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US1141166A
Cited
US1379858A
Cited
US1263301A
Cited
US1456598A
Cited
FR650680A
Cited
GB415206A
Cited
US2482617A
Cited
US2414387A
Cited
FR1006656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |