Patent CH170811A successfully refreshed from Google Patents.
US3071819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packages
Assignee: WR Grace and Co
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Filing: 1961-01-03
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Granted: 1963-01-08
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Expires: 1981-01-03
Abstract
No abstract record available.
Inventors
- 👤 John W Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:15
CPC Classifications
B; B42; B42D; B42D3/00; B42D3/02; Y; Y10; Y10S; Y10S277/00; Y10S277/931; Y10S277/935; Y10S277/944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A METHOD OF COVERING A BOOK HAVING ATTACHED COVER PANELS COMPRISING INSERTING THE BOOK COVER PANELS INTO SLITS IN AN OTHERWISE COMPLETELY CLOSED HEAT SHRINKABLE POLYMER COVER, SAID COVER BEING LARGER THAN SAID BOOK AND THEN APPLYING HEAT TO SHRINK THE POLYMER COVER TO CLOSELY FIT BUT NOT ADHERE TO THE OUTSIDE CONTOURS OF THE BOOK.
Claim 2
Independent Claim
56 words
A METHOD OF COVERING A BOOK HAVING ATTACHED COVER PANELS COMPRISING INSERTING THE BOOK COVER PANELS INTO SLITS IN AN OTHERWISE COMPLETELY CLOSED HEAT SHRINKABLE POLYMER COVER, SAID COVER BEING LARGER THAN SAID BOOK AND THEN APPLYING HEAT TO SHRINK THE POLYMER COVER TO CLOSELY FIT BUT NOT ADHERE TO THE OUTSIDE CONTOURS OF THE BOOK.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |