Patent US661514A successfully refreshed from Google Patents.
Patent US3268678A successfully refreshed from Google Patents.
US3268678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable tire pressure sensing switch which is easily tested for proper operation
Assignee: Philips North America LLC
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Filing: 1963-11-18
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Granted: 1966-08-23
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Expires: 1983-11-18
Abstract
No abstract record available.
Inventors
- 👤 Gene L James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:55
CPC Classifications
B; B60; B60C; B60C23/00; B60C23/02; B60C23/04; B60C23/0408
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AN ELECTRICAL SWITCH RESPONSIVE TO AN ABNORMAL PRESSURE AND COMPRISING: A BODY STRUCTURE HAVING A PORTION SECURABLE TO A PRESSURE TAP, SAID BODY STRUCTURE DEFINING A FURTHER PRESSURE TAP AND HAVING A FIRST PASSAGE BETWEEN SAID PORTION AND FURTHER PRESSURE TAP, A PISTON MOUNTED ON SAID BODY STRUCTURE AND HAVING A PORTION IN ELECTRICAL CONTACT WITH A SECOND PORTION OF SAID BODY STRUCTURE, A DIAPHRAGM ACTING BETWEEN SAID BODY STRUCTURE AND SAID PISTON, SAID BODY STRUCTURE HAVING A SECOND PASSAGE IN COMMUNICATION WITH SAID FIRST PASSAGE AND OPENING BENEATH SAID DIAPHRAGM, A VALVE IN SAID FIRST PASSAGE NORMALLY SEALING OFF SAID FURTHER PRESSURE TAP BUT OPERABLE TO PERMIT FLOW THROUGH SAID FIRST PASSAGE AND FURTHER PRES-
Claim 2
Dependent Claim
116 words
AN ELECTRICAL SWITCH RESPONSIVE TO AN ABNORMAL PRESSURE AND COMPRISING: A BODY STRUCTURE HAVING A PORTION SECURABLE TO A PRESSURE TAP, SAID BODY STRUCTURE DEFINING A FURTHER PRESSURE TAP AND HAVING A FIRST PASSAGE BETWEEN SAID PORTION AND FURTHER PRESSURE TAP, A PISTON MOUNTED ON SAID BODY STRUCTURE AND HAVING A PORTION IN ELECTRICAL CONTACT WITH A SECOND PORTION OF SAID BODY STRUCTURE, A DIAPHRAGM ACTING BETWEEN SAID BODY STRUCTURE AND SAID PISTON, SAID BODY STRUCTURE HAVING A SECOND PASSAGE IN COMMUNICATION WITH SAID FIRST PASSAGE AND OPENING BENEATH SAID DIAPHRAGM, A VALVE IN SAID FIRST PASSAGE NORMALLY SEALING OFF SAID FURTHER PRESSURE TAP BUT OPERABLE TO PERMIT FLOW THROUGH SAID FIRST PASSAGE AND FURTHER PRES-
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |