Patent US4870942A successfully refreshed from Google Patents.
Patent US1573883A successfully refreshed from Google Patents.
US1573883A
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US
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Dynamo-electric plant
Assignee: Individual
•
Filing: 1921-06-02
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Granted: 1926-02-23
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Expires: 1941-06-02
Abstract
No abstract record available.
Inventors
- 👤 Merritt A Vining
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:03
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/18; H02K7/1807; H02K7/1815; F; F02; F02B; F02B63/00; F02B63/04; H02K27/00; F02B63/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-02-22 | 1929-08-24 | 1930-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-02-22 | 1933-08-24 | 1934-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-02-22 | 1937-08-24 | 1938-02-23 | $7700.00 | Window Closed / Lapsed |