Patent US2716659A successfully refreshed from Google Patents.
US2716659A
Expired / Lapsed
US
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Arylurethans of hexylresorcinol
Assignee: Chemo Puro Manuf Corp
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Filing: 1952-10-02
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Granted: 1955-08-30
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Expires: 1972-10-02
Abstract
No abstract record available.
Inventors
- 👤 Frank J Kreysa
- 👤 Hereld Peter Claude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:04
CPC Classifications
C; C07; C07C; C07C271/00; C07C271/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
AN ARYL CARBAMATE OF HEXYLRESORCINOL SELECTED FROM THE GROUP CONSISTING OF (A) 1-N-HEXYLRESORCINOL-2,4-NPHENYL CARBANATE, (B) 1-N-HEXYLRESORCINOL-2-4-N-1NAPTHYL CARBAMATE, (C) 1-N-HEXYLRESORCINOL-2,4-N-2 NAPHTHYL CARBAMATE, (D) 1-N-HEXYLRESORCINOL-2-4-N-DIPHENYL CARBAMATE, (E) 1-N-HEXYLRESORCINOL-2-4-N-P-NUTROPHENYL CARBAMATE.
Claim 2
Dependent Claim
27 words
AN ARYL CARBAMATE OF HEXYLRESORCINOL SELECTED FROM THE GROUP CONSISTING OF (A) 1-N-HEXYLRESORCINOL-2,4-NPHENYL CARBANATE, (B) 1-N-HEXYLRESORCINOL-2-4-N-1NAPTHYL CARBAMATE, (C) 1-N-HEXYLRESORCINOL-2,4-N-2 NAPHTHYL CARBAMATE, (D) 1-N-HEXYLRESORCINOL-2-4-N-DIPHENYL CARBAMATE, (E) 1-N-HEXYLRESORCINOL-2-4-N-P-NUTROPHENYL CARBAMATE.
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) | 1958-08-29 | 1959-02-28 | 1959-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-29 | 1963-02-28 | 1963-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-29 | 1967-02-28 | 1967-08-30 | $7700.00 | Window Closed / Lapsed |