US2698307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive or molding composition comprising brown rotted wood and phenolformaldehye resin
Assignee: Weyerhaeuser Timber Co
•
Filing: 1949-11-18
•
Granted: 1954-12-28
•
Expires: 1969-11-18
Abstract
No abstract record available.
Inventors
- 👤 Clark C Heritage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:13
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
AN ADHESIVE COMPOSITION COMPRISING AN ADMIXTURE OF A PHENOL-FORMALDEHYDE RESIN, A BASIC REACTING COMPOUND OF AN ALKALI METAL, WATER AND BROWN ROTTED WOOD RESULTING FROM THE ACTION OF A CELLULOSE DESTROYING FUNGUS ON STANDING TIMBER.
Claim 2
Dependent Claim
35 words
AN ADHESIVE COMPOSITION COMPRISING AN ADMIXTURE OF A PHENOL-FORMALDEHYDE RESIN, A BASIC REACTING COMPOUND OF AN ALKALI METAL, WATER AND BROWN ROTTED WOOD RESULTING FROM THE ACTION OF A CELLULOSE DESTROYING FUNGUS ON STANDING TIMBER.
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) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |