US2828228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile fire retardant treatment
Assignee: Wyeth Holdings LLC
•
Filing: 1954-01-12
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Granted: 1958-03-25
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Expires: 1974-01-12
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel J Glade
- 👤 Hechenbleikner Ingenuin
- 👤 Donald W Kaiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:44
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D06M15/43; D06M15/433; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2672; Y10T442/268
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A COMPOSITION OF MATTER WHICH COMPRISES A WATERSOLUBLE MIXTURE OF A METHYLOL MELAMINE WITH A ALIPHATIC AMIDOPHOSPHATE CONTAINING FROM ONE TO SIX CARBON ATOMS AND HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
29 words
A COMPOSITION OF MATTER WHICH COMPRISES A WATERSOLUBLE MIXTURE OF A METHYLOL MELAMINE WITH A ALIPHATIC AMIDOPHOSPHATE CONTAINING FROM ONE TO SIX CARBON ATOMS AND HAVING THE STRUCTURAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |