US3501339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for improving the flame retardancy of wood
Assignee: Dow Chemical Co
•
Filing: 1966-11-09
•
Granted: 1970-03-17
•
Expires: 1986-11-09
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Gurgiolo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:30
CPC Classifications
B; B27; B27K; B27K3/00; B27K3/16; B27K3/166; B27K3/02; B27K3/0278; B27K3/0292; B27K3/34; B27K5/00; B27K5/001; B27K2240/00; B27K2240/30; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/4935; Y10T428/662
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1936985A
Cited
US2143639A
Cited
US2662834A
Cited
US2666078A
Cited
US2811469A
Cited
US2803562A
Cited
US3046236A
Cited
US3265681A
Cited
US3285774A
Cited
US3321330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |