Patent US3035053A successfully refreshed from Google Patents.
US3035053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tris-aminomethylphosphines
Assignee: Albright and Wilson Mfg Ltd
•
Filing: 1956-07-13
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Granted: 1962-05-15
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Expires: 1976-07-13
Abstract
No abstract record available.
Inventors
- 👤 Coates Harold
- 👤 Hoye Pete Albert Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:48
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/5004
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
A MONOMERIC COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
6 words
A MONOMERIC COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
2 words
TRIS-MORPHOLINOMETHYL PHOSPHINE.
Claim 4
Dependent Claim
2 words
TRIS-MORPHOLINOMETHYL PHOSPHINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |