Patent US5840300A successfully refreshed from Google Patents.
US3429827A
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Method of encapsulation
Assignee: Moore Business Forms Inc
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Filing: 1962-11-23
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Granted: 1969-02-25
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Expires: 1982-11-23
Abstract
No abstract record available.
Inventors
- 👤 Henn Ruus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:54
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/14; B01J13/16; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2985; Y10T428/2987; Y10T428/2989
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
THE METHOD OF ENCAPSULATING A SUBSTANCE IN A SHELL OF SOLID SYNTHETIC CONDENSATION POLYMER FORMED BY THE POLYCONDENSATION OF TWO POLYFUNCTIONAL REACTANTS ADAPTED TO CONDENSE TO GIVE SAID POLYMER, WHICH METHOD COMPRISES THE STEPS OF: (1) DISPERSING ONE OF SAID RACTANTS AND SAID SUBSTANCE TO BE ENCAPSULATED IN THE FIRST FLUID CONTINUOUS PHASE, (2) DISSOLVING SAID SECOND REACTANT IN
Claim 2
Independent Claim
59 words
THE METHOD OF ENCAPSULATING A SUBSTANCE IN A SHELL OF SOLID SYNTHETIC CONDENSATION POLYMER FORMED BY THE POLYCONDENSATION OF TWO POLYFUNCTIONAL REACTANTS ADAPTED TO CONDENSE TO GIVE SAID POLYMER, WHICH METHOD COMPRISES THE STEPS OF: (1) DISPERSING ONE OF SAID RACTANTS AND SAID SUBSTANCE TO BE ENCAPSULATED IN THE FIRST FLUID CONTINUOUS PHASE, (2) DISSOLVING SAID SECOND REACTANT IN
References Cited (Backward Citations)
US3078242A
Cited
US3208951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |