US2653975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-exo-dihydrodicyclopentadienylacrylamide
Assignee: Monsanto Chemicals Ltd
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Filing: 1951-05-18
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Granted: 1953-09-29
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Expires: 1971-05-18
Abstract
No abstract record available.
Inventors
- 👤 David T Mowry
- 👤 Eugene L Ringwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:54
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
13 words
AN AMIDE SELECTED FROM THE CLASS CONSISTING OF N - EXO-DIHYDRODICYCLOPENTADIENYLACRYLAMIDE AND N-EXO-DIHYDRODICYCLOPENTADIENYLMETHACRYLAMIDE.
Claim 2
Dependent Claim
13 words
AN AMIDE SELECTED FROM THE CLASS CONSISTING OF N - EXO-DIHYDRODICYCLOPENTADIENYLACRYLAMIDE AND N-EXO-DIHYDRODICYCLOPENTADIENYLMETHACRYLAMIDE.
Claim 3
Independent Claim
62 words
THE METHOD WHICH COMPRISES CONTACTING, AT A TEMPERATURE OF UP TO 60* C., SUBSTANTIALLY ONE MOLE OF A NITRILE SELECTED FROM THE CLASS CONSISTING OF ACRYLONTRILE AND METHACRYLONITRILE WITH SUBSTANTIALLY ONE MOLE OF DICYCLOPENTADIENE IN WATER AND IN THE PRESENCE OF AN ACID CATALYST AND RECOVERING FROM THE RESULTING REACTION PRODUCT AN AMIDE SELECTED FROM THE CLASS CONSISTING OF NEXO-DIHYDRODICYCLOPENTADIENYLACRYLAMIDE AND NEXO-DIHYDRODICYCLOPENTADIENYLMETHACRYLAMIDE.
Claim 4
Independent Claim
62 words
THE METHOD WHICH COMPRISES CONTACTING, AT A TEMPERATURE OF UP TO 60* C., SUBSTANTIALLY ONE MOLE OF A NITRILE SELECTED FROM THE CLASS CONSISTING OF ACRYLONTRILE AND METHACRYLONITRILE WITH SUBSTANTIALLY ONE MOLE OF DICYCLOPENTADIENE IN WATER AND IN THE PRESENCE OF AN ACID CATALYST AND RECOVERING FROM THE RESULTING REACTION PRODUCT AN AMIDE SELECTED FROM THE CLASS CONSISTING OF NEXO-DIHYDRODICYCLOPENTADIENYLACRYLAMIDE AND NEXO-DIHYDRODICYCLOPENTADIENYLMETHACRYLAMIDE.
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) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |