Patent US2873515A successfully refreshed from Google Patents.
US2873515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil inserter
Assignee: AO Smith Corp
•
Filing: 1955-01-03
•
Granted: 1959-02-17
•
Expires: 1975-01-03
Abstract
No abstract record available.
Inventors
- 👤 Bertil G Winstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:01
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/06; H02K15/062; H02K15/065; H02K15/066; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/53143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US509226A
Cited
US1164704A
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US1538187A
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US2272263A
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US2468223A
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US2424752A
Cited
US2443824A
Cited
US2492911A
Cited
US2506173A
Cited
US2685730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |