Patent US3137361A successfully refreshed from Google Patents.
US3137361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power cylinder adapted for brake booster motor use
Assignee: Individual
•
Filing: 1962-06-25
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Granted: 1964-06-16
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Expires: 1982-06-25
Abstract
No abstract record available.
Inventors
- 👤 Glenn T Randol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:40
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/46; B60T13/52; B60T13/573
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN AN AUTOMOBILE OR THE LIKE HAVING A FIREWALL PANEL ADAPTED TO SEPARATE THE DRIVER''S COMPARTMENT FROM THE ENGINE COMPARTMENT, AND A PRESSURE DIFFERENTIAL OPERATED MOTOR HAVING A WALL MOVABLE IN A FLUID CHAMBER ENCLOSURE AND DIVIDING THE LATTER INTO TWO OPPOSING FLUID PRESSURE CHAMBERS ASSOCIATED WITH SAID FIREWALL PANEL, THE IMPROVEMENT WHICH COMPRISES: A CUP-SHAPED DEPRESSION INTEGRALLY FORMED IN A PORTION OF SAID FIREWALL PANEL TO PRODUCE ONE OF SAID FLUID PRESSURE CHAMBERS; A DETACHABLE CUP-SHAPED SHELL HAVING AN OUTWARDLY FLANGED OPEN END AND A CLOSED END TO PRODUCE THE OTHER OF SAID FLUID PRESSURE CHAMBERS; AND MEANS FOR ATTACHING THE FLANGED OPEN END OF SAID SHELL TO SAID FIREWALL PANEL IN COAXIAL RELATIONSHIP TO SAID DEPRESSION TO PRODUCE SAID FLUID CHAMBER ENCLOSURE.
Claim 2
Dependent Claim
124 words
IN AN AUTOMOBILE OR THE LIKE HAVING A FIREWALL PANEL ADAPTED TO SEPARATE THE DRIVER''S COMPARTMENT FROM THE ENGINE COMPARTMENT, AND A PRESSURE DIFFERENTIAL OPERATED MOTOR HAVING A WALL MOVABLE IN A FLUID CHAMBER ENCLOSURE AND DIVIDING THE LATTER INTO TWO OPPOSING FLUID PRESSURE CHAMBERS ASSOCIATED WITH SAID FIREWALL PANEL, THE IMPROVEMENT WHICH COMPRISES: A CUP-SHAPED DEPRESSION INTEGRALLY FORMED IN A PORTION OF SAID FIREWALL PANEL TO PRODUCE ONE OF SAID FLUID PRESSURE CHAMBERS; A DETACHABLE CUP-SHAPED SHELL HAVING AN OUTWARDLY FLANGED OPEN END AND A CLOSED END TO PRODUCE THE OTHER OF SAID FLUID PRESSURE CHAMBERS; AND MEANS FOR ATTACHING THE FLANGED OPEN END OF SAID SHELL TO SAID FIREWALL PANEL IN COAXIAL RELATIONSHIP TO SAID DEPRESSION TO PRODUCE SAID FLUID CHAMBER ENCLOSURE.
References Cited (Backward Citations)
US2685170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |