US3329402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jack base for trailers
Assignee: Individual
•
Filing: 1965-07-12
•
Granted: 1967-07-04
•
Expires: 1985-07-12
Abstract
No abstract record available.
Inventors
- 👤 Eugene V Grumman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:33
CPC Classifications
B; B60; B60S; B60S9/00; B60S9/02; B60S9/04; B60S9/06; B60S9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A JACK BASE FOR A TRAILER COMPRISING IN COMBINATION, A HOLLOW CASTING HAVING UPWARD INWARDLY TAPERED WALLS; AN ANNULAR FLANGE ABOUT THE BOTTOM OF SAID BASE; A HEMISPHERICAL MEMBER FIXEDLY SECURED TO THE TOP OF SAID CASTING; AND A PINTLE AT THE UPPER EXTREMITY OF SAID HEMISPHERICAL MEMBER, RECIPROCABLE JACK MEANS MOUNTED ON SAID TRAILER, SAID JACK MEANS HAVING SEAT MEANS MATING WITH SAID HEMISPHERICAL MEMBER FOR RELATIVE PIVOTALLY MOVEMENT THEREBETWEEN, AND SAID PINTLE PREVENTING THE ACCI-
Claim 2
Dependent Claim
77 words
A JACK BASE FOR A TRAILER COMPRISING IN COMBINATION, A HOLLOW CASTING HAVING UPWARD INWARDLY TAPERED WALLS; AN ANNULAR FLANGE ABOUT THE BOTTOM OF SAID BASE; A HEMISPHERICAL MEMBER FIXEDLY SECURED TO THE TOP OF SAID CASTING; AND A PINTLE AT THE UPPER EXTREMITY OF SAID HEMISPHERICAL MEMBER, RECIPROCABLE JACK MEANS MOUNTED ON SAID TRAILER, SAID JACK MEANS HAVING SEAT MEANS MATING WITH SAID HEMISPHERICAL MEMBER FOR RELATIVE PIVOTALLY MOVEMENT THEREBETWEEN, AND SAID PINTLE PREVENTING THE ACCI-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |