US2701222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of attaching zippers to a plastic body
Assignee: Individual
•
Filing: 1951-04-05
•
Granted: 1955-02-01
•
Expires: 1971-04-05
Abstract
No abstract record available.
Inventors
- 👤 George F Hetzel
- 👤 Henry A Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:13
CPC Classifications
B; B29; B29D; B29D5/00; Y; Y10; Y10S; Y10S190/00; Y10S190/903; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T29/00; Y10T29/49; Y10T29/49782
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
THE METHOD OF ATTACHING A ZIPPER UNIT HAVING FABRIC MARGINAL PIECES TO A PLASTIC SHEET TO FORM OPENING AND CLOSING MEANS, CONSISTING IN FORMING AN ELONGATED HOLE THROUGH A PLASTIC SHEET WITH MARGINAL EDGES THEREABOUT, THEN PROVIDING A FRAME OF PLASTIC WITH AN ELONGATED HOLE LIKE THE HOLE PROVIDED IN THE PLASTIC SHEET, THEN PERFORATING THE MARGINAL FABRIC OF THE ZIPPER WITH A SERIES OF OPENINGS, THEN LAYING THE PLASTIC FRAME OF ONE SIDE OF THE FABRIC MARGIN OF THE ZIPPER, THEN HEAT-SEALING THE PLASTIC SHEET AND PLASTIC FRAME IN A MANNER TO CAUSE PORTIONS OF THE FRAME AND THE PLASTIC SHEET TO BE INTEGRALLY CONNECTED TOGETHER THROGH THE FABRIC MARGINAL PIECES OF THE ZIPPER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |