Patent CH294452A successfully refreshed from Google Patents.
Patent US3500878A successfully refreshed from Google Patents.
US3500878A
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Core winding apparatus
Assignee: Esquire Inc
•
Filing: 1967-01-26
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Granted: 1970-03-17
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Expires: 1987-01-26
Abstract
No abstract record available.
Inventors
- 👤 Buell Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:05
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/06; H01F41/082; H01F41/0206; H01F41/0213; H01F41/076; H01F41/098; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071; Y10T29/53; Y10T29/5313; Y10T29/53143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US964023A
Cited
US3126620A
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US670107A
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US2767382A
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US3049793A
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US3084734A
Cited
US3200476A
Cited
US3162391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |