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US1549436A
Expired / Lapsed
US
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Emulsive agent and the manufacture thereof
Assignee: Individual
•
Filing: 1925-05-15
•
Granted: 1925-08-11
•
Expires: 1945-05-15
Abstract
No abstract record available.
Inventors
- 👤 Billinghame Wilfred Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:37
CPC Classifications
C; C09; C09K; C09K23/00; C09K23/16; C09K23/30; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
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) | 1928-08-10 | 1929-02-09 | 1929-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-08-10 | 1933-02-09 | 1933-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-08-10 | 1937-02-09 | 1937-08-11 | $7700.00 | Window Closed / Lapsed |