Patent US3532571A successfully refreshed from Google Patents.
US3532571A
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Method and apparatus for forming continuous plastic tubing with separable pressure reclosable fastener strips attached to the surface thereof
Assignee: Individual
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Filing: 1967-06-28
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Granted: 1970-10-06
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Expires: 1987-06-28
Abstract
No abstract record available.
Inventors
- 👤 Steven Ausnit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:15
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/20; B29C65/2053; B29C65/2061; B26; B26D; B26D3/00; B26D3/16; B26D3/161; B29C48/00; B29C48/25; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/47; B29C66/474; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C2793/00; B29C2793/0063; B29C48/001; B29C48/0019; B29C48/0022; B29C48/03; B29C48/07; B29C48/08; B29C48/09; B29C48/10; B29C65/022; B29C65/028; B29L; B29L2005/00; B29L2023/00; B29L2023/003; B29L2031/00; B29L2031/712; B29L2031/7128; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/813; B31B70/8131; B31B70/8132; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1082; Y10T156/12; Y10T24/00; Y10T24/25; Y10T24/2536
Claims Analysis
Total Claims: 0
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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) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |