Patent US3344639A successfully refreshed from Google Patents.
US3344639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube bending machine and mandril assembly
Assignee: MCINERNEY SPRING AND WIRE Co
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Filing: 1964-12-15
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Granted: 1967-10-03
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Expires: 1984-12-15
Abstract
No abstract record available.
Inventors
- 👤 Sassak Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:05
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2440599A
Cited
US3112787A
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US3021886A
Cited
US3181323A
Cited
US3156827A
Cited
US3155139A
Cited
US3196661A
Cited
US3217524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |