US2938099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal ovens
Assignee: Bulova Watch Co Inc
•
Filing: 1957-07-05
•
Granted: 1960-05-24
•
Expires: 1977-07-05
Abstract
No abstract record available.
Inventors
- 👤 Francis J Cheli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:59
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/05; H03H9/08; H03L; H03L1/00; H03L1/02; H03L1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2146604A
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US2273711A
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US2337692A
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US2443513A
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US2444048A
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US2438345A
Cited
US2470134A
Cited
US2691111A
Cited
US2844742A
Cited
US2791706A
Cited
GB771365A
Cited
US2790884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |