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US3436359A
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Polyether polyprimary polyamines and elastomeric products thereof
Assignee: 3M Co
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Filing: 1965-10-14
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Granted: 1969-04-01
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Expires: 1985-10-14
Abstract
No abstract record available.
Inventors
- 👤 Allen J Hubin
- 👤 Samuel Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:21
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08J9/10; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5021; C08G18/5024; C08G18/65; C08G18/66; C08G18/6666; C08G18/667; C08G18/6681; C08G18/6685; C08G59/00; C08G59/02; C08G59/04; C08G59/06; C08G59/066; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/16; C08G65/20; C08G65/26; C08G65/2642; C08G65/2669; C08G65/2678; C08G65/2684; C08G65/32; C08G65/321; C08G65/325; C08G65/3255; C08G69/00; C08G69/40; C08G75/00; C08G75/12; C08L; C08L63/00; C08L81/00; C08J2363/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3380881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |