US3074101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door check
Assignee: Individual
•
Filing: 1959-11-20
•
Granted: 1963-01-22
•
Expires: 1979-11-20
Abstract
No abstract record available.
Inventors
- 👤 Hideyoshi Hiroaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:49
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/20; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; Y; Y10; Y10S; Y10S16/00; Y10S16/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A COMBINATION HINGE AND DOOR CHECK COMPRISING FIRST AND SECOND HINGE WINGS HAVING COMPLEMENTARY ALIGNED MATING TUBULAR PORTIONS, A FIRST TUBE CLOSED AT ONE END AND ARRANGED INSIDE SAID MATING TUBULAR PORTIONS OF SAID HINGE WINGS, A SECOND TUBE INSIDE SAID FIRST TUBE AND HAVING A CAM SURFACE THEREON, MEANS TO BIAS SAID SECOND TUBE AWAY FROM THE CLOSED END OF SAID FIRST TUBE TOWARD SAID CAM SURFACE, SAID SECOND TUBE BEING AXIALLY MOVABLE IN RESPECT TO SAID FIRST TUBE, MEANS TO PREVENT RELATIVE ROTATION OF SAID FIRST AND SECOND TUBES, AND A ROLLER CAM
Claim 2
Dependent Claim
95 words
A COMBINATION HINGE AND DOOR CHECK COMPRISING FIRST AND SECOND HINGE WINGS HAVING COMPLEMENTARY ALIGNED MATING TUBULAR PORTIONS, A FIRST TUBE CLOSED AT ONE END AND ARRANGED INSIDE SAID MATING TUBULAR PORTIONS OF SAID HINGE WINGS, A SECOND TUBE INSIDE SAID FIRST TUBE AND HAVING A CAM SURFACE THEREON, MEANS TO BIAS SAID SECOND TUBE AWAY FROM THE CLOSED END OF SAID FIRST TUBE TOWARD SAID CAM SURFACE, SAID SECOND TUBE BEING AXIALLY MOVABLE IN RESPECT TO SAID FIRST TUBE, MEANS TO PREVENT RELATIVE ROTATION OF SAID FIRST AND SECOND TUBES, AND A ROLLER CAM
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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |