US2725487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse generator
Assignee: Wyeth Holdings LLC
•
Filing: 1950-03-04
•
Granted: 1955-11-29
•
Expires: 1970-03-04
Abstract
No abstract record available.
Inventors
- 👤 George D Butler
- 👤 Serge A Loukomsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:07
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1680756A
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US1799134A
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US1916356A
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US2108097A
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US2071284A
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US2086157A
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US2348862A
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US2309117A
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US2436104A
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US2502319A
Cited
US2603123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |