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Patent US3353513A successfully refreshed from Google Patents.
US3353513A
Expired / Lapsed
US
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Envelope closing devices
Assignee: Tenovis GmbH and Co KG
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Filing: 1965-06-10
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Granted: 1967-11-21
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Expires: 1985-06-10
Abstract
No abstract record available.
Inventors
- 👤 Schmitt Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:51
CPC Classifications
B; B43; B43M; B43M5/00; B43M5/02; B43M5/04; B43M5/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1727679A
Cited
US2113738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |