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US3248671A
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Lasers utilizing internal reflection techniques
Assignee: International Business Machines Corp
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Filing: 1962-11-30
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Granted: 1966-04-26
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Dill
- 👤 Richard F Rutz
- 👤 Peter P Sorokin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:02
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/30; H01S5/32; H01S5/10; H01S5/1071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |