US3563623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotational energy storage and delivery devices
Assignee: Individual
•
Filing: 1969-05-15
•
Granted: 1971-02-16
•
Expires: 1989-05-15
Abstract
Abstract LENGTH OF TOWEL AS WELL AS TAKE-UP OF THE FINAL TAIL OF THE TOWEL WITHOUT ADDING EXCESSIVE RESISTANCE TO PULL OF THE TOWEL BY THE USER. TOWEL DISPENSERS USING ROTATIONAL ENERGY STORAGE AND DELIVERY DEVICES, WEB DRIVES USING SUCH DEVICES, AND SUCH DEVICES BY THEMSELVES USING HELICAL SPRINGS WHICH HAVE UPPER AND/OR LOWER TORQUE AND STORED-ENERGY LIMITS DETERMINED BY THE SIZING OF THE SPRING AND A CO-OPERATING SURFACE. IN TOWEL DISPENSERS A HELICAL SPRING, RECEIVING ENERGY FROM THE PULL-DOWN OF THE TOWEL BY THE USER, ACCOMPLISHES TAKE-UP (BETWEEN USES) OF PORTIONS OF AN EXTENDED
Inventors
- 👤 Richard Rhodes Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:23
CPC Classifications
A; A47; A47K; A47K10/00; A47K10/24; A47K10/28; F; F03; F03G; F03G1/00; F03G1/02; F03G1/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |