US2804395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Envelopes and the like with remoistenable adhesive comprising polyvinyl alcohol
Assignee: Individual
•
Filing: 1953-09-04
•
Granted: 1957-08-27
•
Expires: 1973-09-04
Abstract
No abstract record available.
Inventors
- 👤 Setrak K Boyajian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:18
CPC Classifications
B; B65; B65D; B65D27/00; B65D27/12; B65D27/14; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/283; Y10T428/2852; Y10T428/2878
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
62 words
AN ENVELOPE HAVING ON THE UNDERSIDE OF THE MARGINAL PORTIONS OF THE SEAL FLAP THEREOF A GLOSSY LAYER REMOISTENABLE ADHESIVE COATING COMPOSITION HAVING AS ITS ESSENTIAL INGREDIENT POLYVINYL ALCOHOL WHICH HAS BEEN BOILED IN AQUEOUS SOLUTION FOR APPROXIMATELY ONE HOUR AND UNTIL ALL THE LAMPS HAVE DISAPEARED AND A NEAR-CLEAN HOMOGENEOUS SOLUTION HAS BEEN FORMED, WITH ALL VOLATILE CONTAMINANTS DISTILLED OFF THEREFROM.
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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) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |