US3457633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making crystal shapes having optically related surfaces
Assignee: International Business Machines Corp
•
Filing: 1965-12-22
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Granted: 1969-07-29
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Expires: 1985-12-22
Abstract
No abstract record available.
Inventors
- 👤 John C Marinace
- 👤 Richard F Rutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:18
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/50; H01S5/20; H01S5/22; H01S5/30; H01S5/40; H01S5/4025; H01S5/4031; H10; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/18; H10P; H10P52/00; H10P95/00; Y; Y10; Y10S; Y10S257/00; Y10S257/926; Y10T; Y10T225/00; Y10T225/10; Y10T225/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2235051A
Cited
US2762954A
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US3054709A
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US3140527A
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US3162932A
Cited
US3247576A
Cited
US3341937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |