Patent US3098830A successfully refreshed from Google Patents.
US3098830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric silazanes
Assignee: General Electric Co
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Filing: 1961-04-14
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Granted: 1963-07-23
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Expires: 1981-04-14
Abstract
No abstract record available.
Inventors
- 👤 Eugene G Rochow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:08
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/60; C08G77/62
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
66 words
A POLYMERIC MATERIAL COMPRISING TWO SILAZANE CHAINS, EACH OF WHICH CONSISTS OF A PLURALITY OF ATERNATE SILICON AND NITRIGEN ATOMS, SILICON-BONDED MONOVALENT HYDROCHAINS CONTAINING TWO SILICON-BONDED MONOVALENT HYDROCARBON RADICALS, THE NITROGEN ATOMS OF THE FIRST OF SAID CHAINS BEING ATTACHED TO THE NITROGEN ATOMS OF THE SECOND OF SAID CHAINS THROUGH A DIVALENT HYDROCARBON RADICAL OF AT LEAST TWO CARBON ATOMS AND FREE OF ALIPHATIC UNSATURATION.
Claim 2
Dependent Claim
66 words
A POLYMERIC MATERIAL COMPRISING TWO SILAZANE CHAINS, EACH OF WHICH CONSISTS OF A PLURALITY OF ATERNATE SILICON AND NITRIGEN ATOMS, SILICON-BONDED MONOVALENT HYDROCHAINS CONTAINING TWO SILICON-BONDED MONOVALENT HYDROCARBON RADICALS, THE NITROGEN ATOMS OF THE FIRST OF SAID CHAINS BEING ATTACHED TO THE NITROGEN ATOMS OF THE SECOND OF SAID CHAINS THROUGH A DIVALENT HYDROCARBON RADICAL OF AT LEAST TWO CARBON ATOMS AND FREE OF ALIPHATIC UNSATURATION.
Claim 3
Dependent Claim
11 words
THE PROCESS OF FORMING A CROSS-LINKED POLYMERIC SILAZANE HAVING THE FORMULA:
Claim 4
Dependent Claim
11 words
THE PROCESS OF FORMING A CROSS-LINKED POLYMERIC SILAZANE HAVING THE FORMULA:
References Cited (Backward Citations)
US2876209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |