US2443889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive of water remoistenable type from lignin sulfonic acid and polyvinyl alcohol
Assignee: Gummed Products Co
•
Filing: 1946-08-20
•
Granted: 1948-06-22
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Expires: 1966-08-20
Abstract
No abstract record available.
Inventors
- 👤 Donald S Bruce
- 👤 Howard L Heise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:13
CPC Classifications
C; C09; C09J; C09J197/00; C09J129/00; C09J129/02; C09J129/04; C08; C08L; C08L2666/00; C08L2666/02; C08L97/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2242601A
Cited
US2332896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |