US3556881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulated chemical product
Assignee: Union Carbide Corp
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Filing: 1962-03-01
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Granted: 1971-01-19
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Expires: 1982-03-01
Abstract
Abstract 1. SOLID PARTICULATE NITRONIUM PERCHLORATE HAVING AS AN INNER COATING CONTACTING THE SURFACE OF THE PARTICLES, A CONTINUOUS COATING SURROUNDING AND ENCAPSULATING SAID PARTICLE OF A SOLVENT-RESISTANT, MOISTURE-IMPERMEABLE LINEAR POLYMER HAVING THE REPEATING UNIT -CH2-((Y)X-1,4-PHENYLENE)-CH2- WHEREIN Y IS AN ELECTRON WITHDRAWING SUBSTITUENT GROUP HAVING A POSITIVE SIGMA PARA VALUE OF AT LEAST 0.20, X IS AN INTEGER FROM 1 TO 3, INCLUSIVE, AND THE SUM OF THE SIGMA PARA VALUE OF ALL OF THE SUBSTITUENT Y GROUPS IS AT LEAST 0.40.
Inventors
- 👤 William F Gorham
- 👤 William E Loeb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:41
CPC Classifications
C; C08; C08L; C08L65/00; C08L65/04; C06; C06B; C06B29/00; C06B45/00; C06B45/18; C06B45/30; C06B45/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
SOLID PARTICULATE NITRONIUM PERCHLORATE HAVING AS AN INNER COATING CONTACTING THE SURFACE OF THE PARTICLES, A CONTINUOUS COATING SURROUNDING AND ENCAPSULATING SAID PARTICLE OF A SOLVENT-RESISTANT, MOISTURE-IMPERMEABLE LINEAR POLYMER HAVING THE REPEATING UNIT
Claim 2
Dependent Claim
33 words
SOLID PARTICULATE NITRONIUM PERCHLORATE HAVING AS AN INNER COATING CONTACTING THE SURFACE OF THE PARTICLES, A CONTINUOUS COATING SURROUNDING AND ENCAPSULATING SAID PARTICLE OF A SOLVENT-RESISTANT, MOISTURE-IMPERMEABLE LINEAR POLYMER HAVING THE REPEATING UNIT
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |