Patent US3266946A successfully refreshed from Google Patents.
US3266946A
Expired / Lapsed
US
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Methods of shaping metal expansion bellows
Assignee: Individual
•
Filing: 1963-05-09
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Granted: 1966-08-16
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Expires: 1983-05-09
Abstract
No abstract record available.
Inventors
- 👤 Merlin Andre Emile Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:50
CPC Classifications
B; B21; B21D; B21D26/00; B21D15/00; B21D15/04; B21D15/06; B21D15/10; C; C21; C21D; C21D7/00; C21D7/02; C21D7/10; C21D7/12; C21D8/00; C21D8/10; C22; C22F; C22F1/00; C22F1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |