Patent US3158676A successfully refreshed from Google Patents.
US3158676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyroscope mounted cassegrain telescope with central support for secondary mirror
Assignee: Individual
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Filing: 1954-11-30
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Granted: 1964-11-24
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Expires: 1974-11-30
Abstract
No abstract record available.
Inventors
- 👤 Mccaffrey Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:53
CPC Classifications
G; G02; G02B; G02B23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN A CASSEGRAIN TELESCOPE COMPRISING A PRIMARY AND A SECONDARY MIRROR AND A HOLLOW TUBULAR MEMBER BETWEEN SAID PRIMARY AND SECONDARY MIRRORS, SAID TELESCOPE, FORMING AN INTEGRAL PORTION OF THE ROTOR OF A GYROSCOPE, ONE END OF SAID TUBULAR MEMBER BEING FIXEDLY MOUNTED AT THE CENTER OF THE PRIMARY MIRROR OF THE TELESCOPE, A TRANSPARENT GLASS DISC FIXEDLY MOUNTED WITHIN THE OTHER END OF SAID TUBULAR MEMBER, A POST FIXEDLY MOUNTED ON THE CENTER OF SAID GLASS DISC, AND MEANS MOUNTED ON SAID POST FOR FIXEDLY SECURING THE SECONDARY MIRROR WITH
Claim 2
Dependent Claim
91 words
IN A CASSEGRAIN TELESCOPE COMPRISING A PRIMARY AND A SECONDARY MIRROR AND A HOLLOW TUBULAR MEMBER BETWEEN SAID PRIMARY AND SECONDARY MIRRORS, SAID TELESCOPE, FORMING AN INTEGRAL PORTION OF THE ROTOR OF A GYROSCOPE, ONE END OF SAID TUBULAR MEMBER BEING FIXEDLY MOUNTED AT THE CENTER OF THE PRIMARY MIRROR OF THE TELESCOPE, A TRANSPARENT GLASS DISC FIXEDLY MOUNTED WITHIN THE OTHER END OF SAID TUBULAR MEMBER, A POST FIXEDLY MOUNTED ON THE CENTER OF SAID GLASS DISC, AND MEANS MOUNTED ON SAID POST FOR FIXEDLY SECURING THE SECONDARY MIRROR WITH
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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |