US3300432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methylisocyanate polymer and process therefor
Assignee: Chemetron Corp
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Filing: 1964-11-05
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Granted: 1967-01-24
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Expires: 1984-11-05
Abstract
No abstract record available.
Inventors
- 👤 James A Tarricone
- 👤 Clifton R Neumoyer
- 👤 Horst William P Ter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:34
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A PROCESS FOR CATALYTICALLY POLYMERIZING METHYLISOCYANATE COMPRISING TREATING METHYLISOCYANATE MONOMER WITH A CATALYTIC AMOUNT OF HEXAMETHYLENETETRAMINE.
Claim 2
Dependent Claim
16 words
A PROCESS FOR CATALYTICALLY POLYMERIZING METHYLISOCYANATE COMPRISING TREATING METHYLISOCYANATE MONOMER WITH A CATALYTIC AMOUNT OF HEXAMETHYLENETETRAMINE.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |