US2928861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
beta-haloalkanesphosphonates
Assignee: Phillips Petroleum Co
•
Filing: 1954-04-22
•
Granted: 1960-03-15
•
Expires: 1974-04-22
Abstract
No abstract record available.
Inventors
- 👤 James N Short
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:35
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4071; C07F9/4075; C07F9/4003; C07F9/4006; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A B-HALOALKANEPHOSPHONATE CHARACTERIZED BY THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
7 words
A B-HALOALKANEPHOSPHONATE CHARACTERIZED BY THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US2380356A
Cited
US2389576A
Cited
US2400577A
Cited
US2436141A
Cited
US2587340A
Cited
US2599761A
Cited
US2604668A
Cited
US2708204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |