US3137036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making plastic slide fasteners
Assignee: Conmar Products Corp
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Filing: 1961-07-17
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Granted: 1964-06-16
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Expires: 1981-07-17
Abstract
No abstract record available.
Inventors
- 👤 Bashover Albert
- 👤 Samberg Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:11
CPC Classifications
B; B29; B29D; B29D5/00; B29D5/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
162 words
AN APPARATUS FOR MAKING A SLIDE FASTENER COMPRISING A MANDREL, TWO OPPOSITELY FACING MOVABLE TOOTHED MEMBERS, SAID MANDREL BEING ARRANGED TO LEAD INTO SAID TOOTHED MEMBERS, MEANS FOR WINDING A FILAMENT ABOUT THE MANDREL TO FORM A HELIX, AND MEANS FOR MOVING SAID TOOTHED MEMBERS IN UNISON RELATIVELY TO SAID HELIX AND FOR MOVING A FIRST OF SAID TOOTHED MEMBERS LONGITUDINALLY RELATIVELY TO THE SECOND OF SAID TOOTHED MEMBERS, THE FIRST OF SAID TOOTHED MEMBERS IN SAID MOVEMENT RECEIVING SUCCESSIVE WINDINGS OF SAID FORMED HELIX, ADVANCING THE SAME THE SPACE OF A TOOTH AND THEN TRANSFERRING THE SAME TO THE SECOND OF SAID TOOTHED MEMBERS, THE TEETH OF SAID TOOTHED MEMBERS BEING SPACED TO DEFINE THE PITCH OF THE HELIX WINDINGS, THE HELIX IN SAID MOVEMENT BEING RETURNED TO THE FIRST TOOTHED MEMBER WHEN THE LATTER IS MOVED TO RECEIVE A NEW WINDING, WHEREBY THE HELIX FORMED ABOUT SAID MANDREL IS UNFORMLY PITCHED AND CONTINUOUSLY ADVANCED IN THE OPERATION OF THE APPARATUS.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |