US3135535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boot and plug closure
Assignee: Individual
•
Filing: 1961-09-27
•
Granted: 1964-06-02
•
Expires: 1981-09-27
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Shepard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:24
CPC Classifications
F; F16; F16L; F16L5/00; F16L5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A CLOSURE FOR AN ENTRANCE CONDUIT OPENING COMPRISING A BRACKET AND A SPACER OF ELASTOMERIC MATERIAL, SAID BRACKET HAVING A RIM SURROUNDING A CENTRAL OPENING, SAID RIM HAVING A NOTCH AND A REDUCED INWARDLY PROJECTING TONGUE, SAID SPACER FITTED WITHIN SAID CENTRAL OPENING, THE PERIPHERY OF SAID SPACER HAVING AN INDENTATION IN ALIGNMENT WITH SAID NOTCH TO FORM AN APERTURE FOR RECEIVING A CONDUIT EXTENDING THERETHROUGH, SAID SPACER HAVING A CIRCUMFERENTIAL GROOVE ALONG ITS PERIPHERY RECEIVING SAID
Claim 2
Dependent Claim
77 words
A CLOSURE FOR AN ENTRANCE CONDUIT OPENING COMPRISING A BRACKET AND A SPACER OF ELASTOMERIC MATERIAL, SAID BRACKET HAVING A RIM SURROUNDING A CENTRAL OPENING, SAID RIM HAVING A NOTCH AND A REDUCED INWARDLY PROJECTING TONGUE, SAID SPACER FITTED WITHIN SAID CENTRAL OPENING, THE PERIPHERY OF SAID SPACER HAVING AN INDENTATION IN ALIGNMENT WITH SAID NOTCH TO FORM AN APERTURE FOR RECEIVING A CONDUIT EXTENDING THERETHROUGH, SAID SPACER HAVING A CIRCUMFERENTIAL GROOVE ALONG ITS PERIPHERY RECEIVING SAID
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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |