US3410641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser range finder device
Assignee: United States Department of the Navy
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Filing: 1965-06-25
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Granted: 1968-11-12
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Expires: 1985-06-25
Abstract
No abstract record available.
Inventors
- 👤 Truman G Bergman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:39
CPC Classifications
G; G01; G01S; G01S17/00; G01S17/02; G01S17/06; G01S17/08; G01S17/10; G01S7/00; G01S7/48; G01S7/481; G01S7/4811; G01S7/4812; H; H01; H01S; H01S3/00; H01S3/10; H01S3/11; H01S3/1123; H01S3/121
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
IN A LASER RANGE FINDER SYSTEM, MEANS COMPRISING IN COMBINATION: AN ENERGIZED REGENERATIVE LASER ROD; A UNIDIRECTIONALLY ROTATING Q-SPOILER HAVING EXTERNAL LIGHT REFLECTING SURFACES ARRANGED ADJACENT ONE END OF SAID ROD IN COAXIAL ALIGNMENT THEREWITH INCLUDING MEANS FOR INITIATING LASER EMISSION DURING A FRACTIONAL PORTION OF EACH REVOLUTION THEREOF AND FURTHER INCLUDING EXTERNAL SURFACES FOR REFLECTING INCIDENT EMISSION AS IT IS CAUSED TO IMPINGE THEREON; AN EMISSION SPREADER INCLUDING A NEGATIVE PLANO-CONCAVE LENS FOR SPREADING SAID LASER EMISSION; AN OBJECTIVE LENS DISPOSED ADJACENT SAID NEGATIVE LENS INCLUDING A CENTRAL PORTION FOR COLLIMATING SAID LASER EMISSION AND PROJECTING SAID EMISSION TOWARD A SELECT-
References Cited (Backward Citations)
GB957235A
Cited
US3150363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |