US3131670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated moving hand instrument indicating devices
Assignee: Individual
•
Filing: 1960-12-07
•
Granted: 1964-05-05
•
Expires: 1980-12-07
Abstract
No abstract record available.
Inventors
- 👤 George K C Hardesty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:54
CPC Classifications
F; F21; F21S; F21S11/00; G; G01; G01D; G01D11/00; G01D11/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
AN ILLUMINABLE INDICATING INSTRUMENT COMPRISING A REENTRANT LIGHT CIRCUIT HAVING A GAP THEREIN, A LIGH SOURCE FOR PROVIDING LIGHT FLUX TO SAID CIRCUIT, AND A MOVABLE POINTER OF LIGHT CONDUCTING MATERIAL HAVING A PORTION EXTENDING INTO SAID GAP IN SAID REENTRANT LIGHT CIRCUIT FOR RECEIVING LIGHT FLUX THEREFROM.
Claim 2
Dependent Claim
48 words
AN ILLUMINABLE INDICATING INSTRUMENT COMPRISING A REENTRANT LIGHT CIRCUIT HAVING A GAP THEREIN, A LIGH SOURCE FOR PROVIDING LIGHT FLUX TO SAID CIRCUIT, AND A MOVABLE POINTER OF LIGHT CONDUCTING MATERIAL HAVING A PORTION EXTENDING INTO SAID GAP IN SAID REENTRANT LIGHT CIRCUIT FOR RECEIVING LIGHT FLUX THEREFROM.
References Cited (Backward Citations)
FR816795A
Cited
US2606277A
Cited
US2886911A
Cited
US2837052A
Cited
US2837053A
Cited
US2805505A
Cited
US2906048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |