Patent US3245375A successfully refreshed from Google Patents.
US3245375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pointer measuring instrument
Assignee: Mannesmann VDO AG
•
Filing: 1964-05-14
•
Granted: 1966-04-12
•
Expires: 1984-05-14
Abstract
No abstract record available.
Inventors
- 👤 Fiedler Hermann
- 👤 Henss Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:38
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A DIAL FOR A POINTER INDICATING INSTRUMENT, COMPRISING A DISC OF TRANSPARENT MATERIAL, A LAYER OF LIGHT TRANSMITTING MATERIAL COVERING ONE FACE OF SAID DISC, SAID LAYER HAVING RECESSES TO FORM INDICIA ON SAID DISC, THE SPECIFIC TRANSMITTING OF LIGHT THROUGH SAID LAYER BEING LOWER THAN THE TRANSMITTANCY OF LIGHT THROUGH SAID INDICIA, AND SAID LAYER OF COVERING MATERIAL COMPRISING A SCREEN OF A PLURALITY OF INTERSECTING, NONTRANSPARENT AND DARKCOLORED LINES FORMED ON OPAQUE MATERIAL OF SUBSTANTIALLY EQUAL WIDTH AND DISPOSED SPACED APART FROM EACH OTHER AT A DISTANCE ABOUT EQUAL WITH THE WIDTH OF SAID LINES.
Claim 2
Dependent Claim
97 words
A DIAL FOR A POINTER INDICATING INSTRUMENT, COMPRISING A DISC OF TRANSPARENT MATERIAL, A LAYER OF LIGHT TRANSMITTING MATERIAL COVERING ONE FACE OF SAID DISC, SAID LAYER HAVING RECESSES TO FORM INDICIA ON SAID DISC, THE SPECIFIC TRANSMITTING OF LIGHT THROUGH SAID LAYER BEING LOWER THAN THE TRANSMITTANCY OF LIGHT THROUGH SAID INDICIA, AND SAID LAYER OF COVERING MATERIAL COMPRISING A SCREEN OF A PLURALITY OF INTERSECTING, NONTRANSPARENT AND DARKCOLORED LINES FORMED ON OPAQUE MATERIAL OF SUBSTANTIALLY EQUAL WIDTH AND DISPOSED SPACED APART FROM EACH OTHER AT A DISTANCE ABOUT EQUAL WITH THE WIDTH OF SAID LINES.
References Cited (Backward Citations)
US2023934A
Cited
US782285A
Cited
US1252193A
Cited
US1414628A
Cited
US1709951A
Cited
US1917079A
Cited
US1967140A
Cited
US2108342A
Cited
US2040119A
Cited
US2097122A
Cited
US2306387A
Cited
US2251021A
Cited
US2365034A
Cited
CH217355A
Cited
GB686858A
Cited
GB684029A
Cited
GB719398A
Cited
US2792803A
Cited
US2846970A
Cited
US2858632A
Cited
US2878394A
Cited
US3054054A
Cited
US3071105A
Cited
US3066643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |