US1471213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of formaldehyde condensation products of aliphatic amines and products obtained thereby
Assignee: Uniroyal Chemical Co Inc
•
Filing: 1922-11-27
•
Granted: 1923-10-16
•
Expires: 1942-11-27
Abstract
No abstract record available.
Inventors
- 👤 Morris G Shepard
- 👤 Harold S Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:29
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/04; C07C209/06; C07C209/08; C08; C08G; C08G12/00; C08G12/02; C08G12/04; C08G12/06
Claims Analysis
Total Claims: 0
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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) | 1926-10-15 | 1927-04-16 | 1927-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-10-15 | 1931-04-16 | 1931-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-10-15 | 1935-04-16 | 1935-10-16 | $7700.00 | Window Closed / Lapsed |