US3416933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable wax emulsions containing hexavalent chromium
Assignee: HICKSON S TIMBER IMPREGNATION
•
Filing: 1966-02-14
•
Granted: 1968-12-17
•
Expires: 1986-02-14
Abstract
No abstract record available.
Inventors
- 👤 Nicholson James
- 👤 Poole Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:37
CPC Classifications
B; B27; B27K; B27K3/00; B27K3/16; B27K3/32; B27K3/02; B27K3/15; B27K3/34; B27K3/36; C; C08; C08L; C08L91/00; C08L91/06; C09; C09D; C09D191/00; C09D191/06; B27K2240/00; B27K2240/70
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2381487A
Cited
US2424831A
Cited
US2452054A
Cited
US2635055A
Cited
US3063852A
Cited
US3083138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |