US2992153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making protective book cover
Assignee: Individual
•
Filing: 1957-07-19
•
Granted: 1961-07-11
•
Expires: 1977-07-19
Abstract
No abstract record available.
Inventors
- 👤 Wilton J Lutwack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:01
CPC Classifications
B; B42; B42C; B42C7/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1034; Y10T156/1052; Y10T156/1084; Y10T156/1089; Y10T156/1092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
THE METHOD OF MAKING A PROTECTIVE BOOK COVER OF THE CHARACTER DESCRIBED, WHICH COMPRISES ARRANGING A SUCCESSION OF PAPER SHEETS IN A ROW IN EDGE-TO-EDGE RELATION WITH ANOTHER, MOVING SAID ROW LONGITUDINALLY PROGRESSIVELY, ADHERING A LONG STRIP OF GLOSSY TRANSPARENT FLEXIBLE SHEET PLASTIC LONGITUDINALLY TO ONE FACE OF SAID MOVING ROW OF PAPER SHEETS, ABRADING FROM A FIXED STATION A LOMITED CENTRAL AREA OF THE FACE OF SAID MOVING STRIP OF PLASTIC OPPOSITE TO THAT TO WHICH SAID PAPER SHEETS ARE APPLIED THEREBY TO PROVIDE A TOOTHES STRIPED RUNNING LENGTH WISE OF THE LINE OF MOVEMENT OF SAID LONG STRIP, AND THEREAFTER CUTTING SAID LONG STRIP ALONG THE ABUTTING EDGES OF SAID PAPER SHEETS.
Claim 2
Independent Claim
114 words
THE METHOD OF MAKING A PROTECTIVE BOOK COVER OF THE CHARACTER DESCRIBED, WHICH COMPRISES ARRANGING A SUCCESSION OF PAPER SHEETS IN A ROW IN EDGE-TO-EDGE RELATION WITH ANOTHER, MOVING SAID ROW LONGITUDINALLY PROGRESSIVELY, ADHERING A LONG STRIP OF GLOSSY TRANSPARENT FLEXIBLE SHEET PLASTIC LONGITUDINALLY TO ONE FACE OF SAID MOVING ROW OF PAPER SHEETS, ABRADING FROM A FIXED STATION A LOMITED CENTRAL AREA OF THE FACE OF SAID MOVING STRIP OF PLASTIC OPPOSITE TO THAT TO WHICH SAID PAPER SHEETS ARE APPLIED THEREBY TO PROVIDE A TOOTHES STRIPED RUNNING LENGTH WISE OF THE LINE OF MOVEMENT OF SAID LONG STRIP, AND THEREAFTER CUTTING SAID LONG STRIP ALONG THE ABUTTING EDGES OF SAID PAPER SHEETS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |