US2941477A
Expired / Lapsed
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Assignee: ARTHUR H THOMAS CO
•
Filing: 1959-03-16
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Granted: 1960-06-21
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Expires: 1979-03-16
Abstract
No abstract record available.
Inventors
- 👤 Robert J Dalton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:41
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/10; F; F04; F04D; F04D13/00; F04D13/02; F04D13/021; F04D13/024; F04D13/025; F04D13/026; F04D13/027
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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |