Patent US2815649A successfully refreshed from Google Patents.
US2815649A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1955-05-27
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Granted: 1957-12-10
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Expires: 1975-05-27
Abstract
No abstract record available.
Inventors
- 👤 Angelus Anthony Di
- 👤 Anthony R Costantini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:18
CPC Classifications
F; F25; F25D; F25D19/00; F25D23/00; F25D23/06; F25D23/062; F25D25/00; F25D25/02; F25D17/00; F25D17/04; F25D17/06; F25D17/062; F25D17/065; F25D2400/00; F25D2400/06; F25D2400/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2144350A
Cited
US2252010A
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US2437451A
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US2546363A
Cited
US2648584A
Cited
US2644213A
Cited
US2686704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |