US2852408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fireproofing redwood bark fibers
Assignee: Georgia-Pacific LLC
•
Filing: 1955-12-08
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Granted: 1958-09-16
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Expires: 1975-12-08
Abstract
No abstract record available.
Inventors
- 👤 George H Brother
- 👤 Maurice H Knowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:06
CPC Classifications
B; B27; B27K; B27K9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A PROCESS FOR FIREPROOFING TREE BARK, COMPRISING THE STEPS OF ADDING DRY CRYSTALLINE FIREPROOFING SALTS TO A WET BARK MASS, PRIOR TO ANY OTHER PROCESSING THEREOF, REDUCING THE WET BARK MASS TO COARSE SHREDS AND DRYING THE COARSE SHREDS.
Claim 2
Dependent Claim
39 words
A PROCESS FOR FIREPROOFING TREE BARK, COMPRISING THE STEPS OF ADDING DRY CRYSTALLINE FIREPROOFING SALTS TO A WET BARK MASS, PRIOR TO ANY OTHER PROCESSING THEREOF, REDUCING THE WET BARK MASS TO COARSE SHREDS AND DRYING THE COARSE SHREDS.
References Cited (Backward Citations)
US2030653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |