Patent US3280413A successfully refreshed from Google Patents.
US3280413A
Expired / Lapsed
US
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Rounding and backing method and apparatus
Assignee: Robbins & Bendror Associates I
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Filing: 1965-01-15
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Granted: 1966-10-25
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Expires: 1985-01-15
Abstract
No abstract record available.
Inventors
- 👤 Robbins Leo
- 👤 Bendror Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:24
CPC Classifications
B; B42; B42C; B42C5/00; B42C5/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
AN APPARATUS FOR BACKING AND ROUNDING BOOKS, COMPRISING A BACKING ELEMENT, MEANS FOR FEEDING A BOOK TOWARD AN OPERATING PATH OF SAID BACKING ELEMENT FOR ENGAGEMENT OF THE BOOK BACK WITH THE BACKING ELEMENT TO FORM THE BOOK BACK, SAID FEEDING MEANS BEING ENGAGEABLE WITH THE SIDES OF SAID BOOK AND FEEDING SAID BOOK IN A MANNER TO CAUSE A ROUNDING OF THE BACK THEREOF, A MOVABLE SUPPORT FOR SAID BACKING ELEMENT, AND MEANS MOUNT-
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |