Patent US1114405A successfully refreshed from Google Patents.
US1114405A
Expired / Lapsed
US
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Dynamo-electric machine provided with commutating pole-pieces.
Assignee: RATEAU BATTU SMOOT Co
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Filing: 1911-09-05
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Granted: 1914-10-20
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Expires: 1931-09-05
Abstract
No abstract record available.
Inventors
- 👤 Charles Head Smoot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:28
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/18; H02K1/185
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) | 1917-10-19 | 1918-04-20 | 1918-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-10-19 | 1922-04-20 | 1922-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-10-19 | 1926-04-20 | 1926-10-20 | $7700.00 | Window Closed / Lapsed |