US3311622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted phosphonitrilic trimers
Assignee: Shulton Inc
•
Filing: 1961-05-17
•
Granted: 1967-03-28
•
Expires: 1981-05-17
Abstract
No abstract record available.
Inventors
- 👤 Stephen P Joffre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:59
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6581; C07F9/65812; C07F9/65815
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
PHOSPHONITRILE CHLORIDE-BIS-METHOXY PROPLYAMINE OF THE FORMULA
Claim 2
Dependent Claim
6 words
PHOSPHONITRILE CHLORIDE-BIS-METHOXY PROPLYAMINE OF THE FORMULA
Claim 3
Dependent Claim
5 words
PHOSPHONITRILE CHLORIDE-BIS-MORPHOLINE OF THE FORMULA
Claim 4
Dependent Claim
5 words
PHOSPHONITRILE CHLORIDE-BIS-MORPHOLINE OF THE FORMULA
References Cited (Backward Citations)
US2192921A
Cited
DE900814C
Cited
US2833635A
Cited
GB830800A
Cited
US2941001A
Cited
DE1050997B
Cited
US2981619A
Cited
US2978310A
Cited
US2966487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |