Patent US3535409A successfully refreshed from Google Patents.
US3535409A
Expired / Lapsed
US
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Method of making sheet material with film tear line
Assignee: TOWER PRODUCTS Inc A CORP OF
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Filing: 1967-11-13
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Granted: 1970-10-20
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Expires: 1987-11-13
Abstract
No abstract record available.
Inventors
- 👤 William A Rohde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:50
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/52; B65D75/58; B65D75/5827; B65D75/5833; B65D75/5844; B29; B29C; B29C37/00; B29C37/0053; B29C37/0057; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C48/16; B29C48/18; B29C48/19; B65D75/04; B65D75/20; Y; Y10; Y10T; Y10T428/00; Y10T428/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2932855A
Cited
US3034941A
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US3223761A
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US3405425A
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US3336174A
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US3441637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |