US2908834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-cooled eddy current coupler device
Assignee: Louis Allis Co
•
Filing: 1958-07-30
•
Granted: 1959-10-13
•
Expires: 1978-07-30
Abstract
No abstract record available.
Inventors
- 👤 Chester L Munson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:35
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/02; H02K49/04; H02K49/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2484138A
Cited
US2538797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |