Patent US3527455A successfully refreshed from Google Patents.
US3527455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for opening multiple sheet paper articles and for insertion of supplemental sheets into the opened article
Assignee: Ferag AG
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Filing: 1967-06-01
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Granted: 1970-09-08
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Expires: 1987-06-01
Abstract
No abstract record available.
Inventors
- 👤 Walter Reist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:32
CPC Classifications
B; B41; B41L; B41L45/00; B41F; B41F13/00; B41F13/54; B41F13/68; B41L45/02; B65; B65H; B65H5/00; B65H5/30; B65H5/301
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) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |