US2818349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive sheet product and method of making
Assignee: Permacel Le Pages Inc
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Filing: 1954-08-17
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Granted: 1957-12-31
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Expires: 1974-08-17
Abstract
No abstract record available.
Inventors
- 👤 Bergstedt Milton Alfred
- 👤 Jr Burl Ward Keys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:16
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/201; C09J7/22; C09J7/30; C09J2400/00; C09J2400/20; C09J2400/28; C09J2400/283; C09J2401/00; C09J2401/005; C09J2401/006; C09J2467/00; C09J2467/005; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
IN THE PROCESS OF PREPARING PRINTED CELLULOSE ACETATE FILM-BACKED NORMALLY TACKY AND PRESSURE-SENSITIVE ADHESIVE TAPE, THE STEPS OF PREPARING THE ADHESIVE TAPE BACKING FOR A RESINOUS BINDER INK IMPRESSION BY PRE-COATING THE INK RECEIVING SURFACE OF SAID BACKING WITH A THIN, CONTINUOUS, MIRROR COATING COMPRISING AT LEAST A MAJOR PROPORTION OF AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF THE LOWER ALKYL METHACRYLATES AND NITROCELLULOSE, AND APPLYING RESINOUS BINDER INK IMPRESSIONS ON SAID MIRROR COATING.
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) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |