Patent US2637691A successfully refreshed from Google Patents.
US2637691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wood preservation
Assignee: T J MOSS TIE Co
•
Filing: 1951-07-16
•
Granted: 1953-05-05
•
Expires: 1971-07-16
Abstract
No abstract record available.
Inventors
- 👤 Estes E Pershall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:14
CPC Classifications
B; B27; B27K; B27K3/00; B27K3/16; B27K3/32; B27K3/02; B27K3/0278; B27K3/0292; B27K5/00; B27K5/04; B27K2240/00; B27K2240/30; Y; Y10; Y10T; Y10T428/00; Y10T428/4935; Y10T428/662
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
32 words
A TREATING SOLUTION FOR RENDERING WOOD FIRERESISTANT BEFORE AND AFTER LEACHING WITH WATER COMPRISING AN AMMONIACAL SOLUTION OF AN AMMONIATED BASIC ZINC CHLORIDE HAVING A COMPOSITION ON THE DRY BASIS BETWEEN APPROXIMATELY
Claim 2
Dependent Claim
32 words
A TREATING SOLUTION FOR RENDERING WOOD FIRERESISTANT BEFORE AND AFTER LEACHING WITH WATER COMPRISING AN AMMONIACAL SOLUTION OF AN AMMONIATED BASIC ZINC CHLORIDE HAVING A COMPOSITION ON THE DRY BASIS BETWEEN APPROXIMATELY
Claim 3
Dependent Claim
40 words
WOOD WHICH IS FIRE-RESISTANT BEFORE AND AFTER LEACHING WITH WATER COMPRISING THE PRODUCT RESULTING FROM THE IMPREGNATION AND DRYING OF WOOD WITH AN AMMONIACAL SOLUTION OF AN AMMONIATED BASIC ZINC CHLORIDE HAVING A COMPOSITION ON THE DRY BASIS BETWEEN APPROXIMATELY
Claim 4
Dependent Claim
40 words
WOOD WHICH IS FIRE-RESISTANT BEFORE AND AFTER LEACHING WITH WATER COMPRISING THE PRODUCT RESULTING FROM THE IMPREGNATION AND DRYING OF WOOD WITH AN AMMONIACAL SOLUTION OF AN AMMONIATED BASIC ZINC CHLORIDE HAVING A COMPOSITION ON THE DRY BASIS BETWEEN APPROXIMATELY
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) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |