US2839563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphites
Assignee: Shea Chemical Corp
•
Filing: 1955-12-28
•
Granted: 1958-06-17
•
Expires: 1975-12-28
Abstract
No abstract record available.
Inventors
- 👤 Hechenbleikner Ingenuin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:45
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/6574; C07F9/65746; C07F9/65742; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/527; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2633; C10L1/2641
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
4 words
COMPOUNDS HAVING THE FORMULA:
Claim 2
Dependent Claim
4 words
COMPOUNDS HAVING THE FORMULA:
Claim 3
Dependent Claim
19 words
A PROCESS OF PREPARING THE COMPOUNDS OF CLAIM 1 COMPRISING REACTING TWO MOLS OF A GLYCOL HVING THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |