Patent US1885785A successfully refreshed from Google Patents.
US1885785A
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US
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Apparatus for making foam
Assignee: Gypsum Lime and Alabastine Canada Ltd
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Filing: 1927-09-19
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Granted: 1932-11-01
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Expires: 1947-09-19
Abstract
No abstract record available.
Inventors
- 👤 Thomson George Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:59
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/235; B01F23/2351; Y; Y10; Y10S; Y10S261/00; Y10S261/26
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) | 1935-11-01 | 1936-05-02 | 1936-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-01 | 1940-05-02 | 1940-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-01 | 1944-05-02 | 1944-11-01 | $7700.00 | Window Closed / Lapsed |