US2579418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric resinous products containing repeating units of silicon linked to nitrogen and process for making same
Assignee: EDWIN L GUSTUS
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Filing: 1949-01-24
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Granted: 1951-12-18
•
Expires: 1969-01-24
Abstract
No abstract record available.
Inventors
- 👤 Nicholas D Cheronis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:46
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/60; C08G77/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A POLYMERIC RESIN CHARACTEARIZED BY REPEATING UNITS OF SILICON LINKED TO NITROGEN AS AN INTEGRAL PART OF THE POLYMER CHAIN AND HAVING REPEATING UNITS CONSISTING OF SILICON SUBSTITUTED BY MONOVALENT HYDROCARBON RADICALS, SAID SILICON BEING ATTACHED TO NITROGEN SUBSTITUTED BY A MEMBER CONSISTING OF HYDROGEN AND HYDROCARBON RADICALS, SAID RESIN HAVING AN AVERAGE RATIO OF 1 ATOM OF SILICON TO BETWEEN APPROXIMATELY 1.25 AND APPROXIMATELY 1.6 ATOMS OF NITROGEN IN ITS REPEATING UNITS.
Claim 2
Dependent Claim
73 words
A POLYMERIC RESIN CHARACTEARIZED BY REPEATING UNITS OF SILICON LINKED TO NITROGEN AS AN INTEGRAL PART OF THE POLYMER CHAIN AND HAVING REPEATING UNITS CONSISTING OF SILICON SUBSTITUTED BY MONOVALENT HYDROCARBON RADICALS, SAID SILICON BEING ATTACHED TO NITROGEN SUBSTITUTED BY A MEMBER CONSISTING OF HYDROGEN AND HYDROCARBON RADICALS, SAID RESIN HAVING AN AVERAGE RATIO OF 1 ATOM OF SILICON TO BETWEEN APPROXIMATELY 1.25 AND APPROXIMATELY 1.6 ATOMS OF NITROGEN IN ITS REPEATING UNITS.
References Cited (Backward Citations)
US2462635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |