US3296590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire pressure indicator
Assignee: R D PRODUCTS Inc
•
Filing: 1963-08-01
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Granted: 1967-01-03
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Expires: 1983-08-01
Abstract
No abstract record available.
Inventors
- 👤 Robert L Dalton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:01
CPC Classifications
B; B60; B60C; B60C23/00; B60C23/02; B60C23/04; B60C23/0408; B60C23/005; B60C23/007; B60C23/0422; B60C23/0433; B60C23/0447; B60C23/0452
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A DEVICE FOR INDICATING A LOW PRESSURE CONDITION IN A PNEUMATIC TIRE, COMPRISING (A) A STATIONARY MEMBER AND A MEMBER MOVABLE RELATIVE TO SAID STATIONARY MEMBER, (B) MEANS FOR CONNECTING SAID MOVABLE MEMBER TO A PNEUMATIC TIRE FOR MOVEMENT IN ONE DIRECTION IN RESPONSE TO A DECREASE IN THE AIR PRESSURE IN SAID TIRE, (C) A PAIR OF NORMALLY OPEN SWITCH CONTACTS CARRIED BY ONE OF SAID MEMBERS, (D) ELECTRICALLY-OPERATED MEANS CONNECTED TO SAID NORMALLY OPEN SWITCH CONTACTS AND OPERATIVE UPON THE CLOSING OF SAID CONTACTS TO GENERATE A WARNING SIGNAL, AND (E) A CONTACT MEANS ON THE OTHER OF SAID MEMBERS SPACED FROM ONE ANOTHER IN SAID ONE DIRECTION AND OPERATIVE INTERMITTENTLY TO CLOSE SAID NORMALLY OPEN CONTACTS SUCCESSIVELY UPON MOVEMENT OF SAID MOVABLE MEMBER IN SAID ONE DIRECTION.
Claim 2
Independent Claim
130 words
A DEVICE FOR INDICATING A LOW PRESSURE CONDITION IN A PNEUMATIC TIRE, COMPRISING (A) A STATIONARY MEMBER AND A MEMBER MOVABLE RELATIVE TO SAID STATIONARY MEMBER, (B) MEANS FOR CONNECTING SAID MOVABLE MEMBER TO A PNEUMATIC TIRE FOR MOVEMENT IN ONE DIRECTION IN RESPONSE TO A DECREASE IN THE AIR PRESSURE IN SAID TIRE, (C) A PAIR OF NORMALLY OPEN SWITCH CONTACTS CARRIED BY ONE OF SAID MEMBERS, (D) ELECTRICALLY-OPERATED MEANS CONNECTED TO SAID NORMALLY OPEN SWITCH CONTACTS AND OPERATIVE UPON THE CLOSING OF SAID CONTACTS TO GENERATE A WARNING SIGNAL, AND (E) A CONTACT MEANS ON THE OTHER OF SAID MEMBERS SPACED FROM ONE ANOTHER IN SAID ONE DIRECTION AND OPERATIVE INTERMITTENTLY TO CLOSE SAID NORMALLY OPEN CONTACTS SUCCESSIVELY UPON MOVEMENT OF SAID MOVABLE MEMBER IN SAID ONE DIRECTION.
References Cited (Backward Citations)
US1975639A
Cited
US2309025A
Cited
US2727221A
Cited
US2860321A
Cited
US3178686A
Cited
US3117195A
Cited
US3181118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |