US3029283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flameproofing compositions and the use of same
Assignee: Victor Chemical Works
•
Filing: 1958-10-20
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Granted: 1962-04-10
•
Expires: 1978-10-20
Abstract
No abstract record available.
Inventors
- 👤 Roger C Steinbauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:55
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/667
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A CONDENSATION REACTION PRODUCT PRODUCED BY ADMIXING ETHYLENEDIAMINE WITH THE REACTION PRODUCT OF ANHYDROUS AMMONIA AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS PENTOXIDE AND PHOSPHORUS OXYCHLORIDE AND HEATING THE MIXTURE TO CAUSE THE SUBSTANTIAL EVOLUTION OF AMMONIA.
Claim 2
Dependent Claim
40 words
A CONDENSATION REACTION PRODUCT PRODUCED BY ADMIXING ETHYLENEDIAMINE WITH THE REACTION PRODUCT OF ANHYDROUS AMMONIA AND A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS PENTOXIDE AND PHOSPHORUS OXYCHLORIDE AND HEATING THE MIXTURE TO CAUSE THE SUBSTANTIAL EVOLUTION OF AMMONIA.
References Cited (Backward Citations)
US2382309A
Cited
US2482755A
Cited
US2524783A
Cited
US2662095A
Cited
US2648706A
Cited
US2852550A
Cited
DE1011859B
Cited
US2964377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |