Patent US1372780A successfully refreshed from Google Patents.
Patent US3190631A successfully refreshed from Google Patents.
US3190631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil spring lock
Assignee: Individual
•
Filing: 1962-12-24
•
Granted: 1965-06-22
•
Expires: 1982-12-24
Abstract
No abstract record available.
Inventors
- 👤 Kaiser Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:21
CPC Classifications
B; B21; B21F; B21F33/00; B21F33/04; A; A47; A47C; A47C27/00; A47C27/04; A47C27/06; A47C7/00; A47C7/02; A47C7/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN UPHOLESTERY SPRING COMPRISING: AN UPPER END COIL OF SUBSTANTIALLY CIRCULAR CONFIGURATION; A LOWER END COIL OF SUBSTANTIALLY CIRCULAR CONFIGURATION, THE PLANES OF SAID END COILS BEING SUBSTANTIALLY PARALLEL AND SUBSTANTIALLY AT RIGHT ANGLES TO THE LONGITUDINAL AXIS OF SAID SPRING; SUCCESSIVE COILS BETWEEN SAID END COILS; A FREE END OF EACH ONE OF SAID END COILS WOUND ABOUT THE JUNCTURE OF AN ADJACENT ONE OF SAID SUCCESSIVE COILS AND SAID END COIL TO FORM A KNOT; A FIRST BEND IN BOTH SAID END COILS ADJACENT
Claim 2
Dependent Claim
86 words
AN UPHOLESTERY SPRING COMPRISING: AN UPPER END COIL OF SUBSTANTIALLY CIRCULAR CONFIGURATION; A LOWER END COIL OF SUBSTANTIALLY CIRCULAR CONFIGURATION, THE PLANES OF SAID END COILS BEING SUBSTANTIALLY PARALLEL AND SUBSTANTIALLY AT RIGHT ANGLES TO THE LONGITUDINAL AXIS OF SAID SPRING; SUCCESSIVE COILS BETWEEN SAID END COILS; A FREE END OF EACH ONE OF SAID END COILS WOUND ABOUT THE JUNCTURE OF AN ADJACENT ONE OF SAID SUCCESSIVE COILS AND SAID END COIL TO FORM A KNOT; A FIRST BEND IN BOTH SAID END COILS ADJACENT
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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |