US3272897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making polymer coated substances and molding them into an article
Assignee: NL Industries Inc
•
Filing: 1962-11-01
•
Granted: 1966-09-13
•
Expires: 1982-11-01
Abstract
No abstract record available.
Inventors
- 👤 Daniel F Herman
- 👤 Albert L Resnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:26
CPC Classifications
C; C08; C08L; C08L77/00; B; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/14; B01J13/16; C08G; C08G69/00; C08G69/02; C08G69/04; C08G85/00; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A PROCESS FOR THE ENCAPSULATION OF FINELY DIVIDED PARTICLES WITH A POLYMER COMPRISING DISPERSING THE FINELY DIVIDED PARTICLES AT THE INTERFACES OF TWO INTERMINGLED, IMMISCIBLE SOLUTIONS, ONE OF SAID SOLUTIONS CONTAINING A FIRST REACTANT CAPABLE OF REACTING WITH A SECOND REACTANT DISSOLVED IN THE OTHER SOLUTION TO FORM A POLYMER, WHERE-
Claim 2
Dependent Claim
51 words
A PROCESS FOR THE ENCAPSULATION OF FINELY DIVIDED PARTICLES WITH A POLYMER COMPRISING DISPERSING THE FINELY DIVIDED PARTICLES AT THE INTERFACES OF TWO INTERMINGLED, IMMISCIBLE SOLUTIONS, ONE OF SAID SOLUTIONS CONTAINING A FIRST REACTANT CAPABLE OF REACTING WITH A SECOND REACTANT DISSOLVED IN THE OTHER SOLUTION TO FORM A POLYMER, WHERE-
References Cited (Backward Citations)
US2013702A
Cited
US2171765A
Cited
US2183857A
Cited
US2504208A
Cited
US2702924A
Cited
US2797201A
Cited
US2933415A
Cited
US3001582A
Cited
US3121698A
Cited
US3069292A
Cited
US3033805A
Cited
US3092438A
Cited
US3138478A
Cited
US3055846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |