Patent US2883412A successfully refreshed from Google Patents.
US2883412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
P-xylylenediamine salts of glycol boric acids
Assignee: California Research LLC
•
Filing: 1955-12-01
•
Granted: 1959-04-21
•
Expires: 1975-12-01
Abstract
No abstract record available.
Inventors
- 👤 Lowe Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:51
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/04; C10; C10M; C10M2203/00; C10M2203/06; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/108; C10M2209/109; C10M2219/00; C10M2219/02; C10M2219/04; C10M2219/046; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/06; C10M2223/065; C10M2227/00; C10M2227/02; C10M2227/06; C10M2227/061; C10M2227/062; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10M2229/05; C10N; C10N2040/00; C10N2040/08; C10N2040/12; C10N2040/13; C10N2040/135; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A P-XYLYLENEDIAMINE SALT OF A DIGLYCOL BORIC ACID IN WHICH THE GLYCOL GROUPS ARE IDENTICAL A- AND B-GLYCOL GROUPS AND CONTAIN FROM 6 TO 10 CARBON ATOMS IN EACH GLYCOL GROUP.
Claim 2
Dependent Claim
31 words
A P-XYLYLENEDIAMINE SALT OF A DIGLYCOL BORIC ACID IN WHICH THE GLYCOL GROUPS ARE IDENTICAL A- AND B-GLYCOL GROUPS AND CONTAIN FROM 6 TO 10 CARBON ATOMS IN EACH GLYCOL GROUP.
References Cited (Backward Citations)
US1975890A
Cited
US2497521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |