US3477051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die casting of core windings
Assignee: International Business Machines Corp
•
Filing: 1968-01-15
•
Granted: 1969-11-04
•
Expires: 1988-01-15
Abstract
No abstract record available.
Inventors
- 👤 Kendall Clark
- 👤 Karl E Herrmann
- 👤 William A Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:48
CPC Classifications
C; C25; C25D; C25D21/00; C25D21/10; B; B22; B22D; B22D17/00; C25D5/00; C25D5/007; C25D5/009; H; H01; H01F; H01F17/00; H01F17/0006; H01F17/0033; H01F17/04; H01F17/06; C25D17/00; C25D17/10; C25D17/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2826747A
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US3008108A
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US2982888A
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US3319207A
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US3287795A
Cited
US3377699A
Cited
US3316517A
Cited
US3390308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |