Patent US1919836A successfully refreshed from Google Patents.
US1919836A
Expired / Lapsed
US
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Jacketed apparatus for converting organic matter
Assignee: UNDERPINNING AND FOUNDATION Co
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Filing: 1928-02-23
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Granted: 1933-07-25
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Expires: 1948-02-23
Abstract
No abstract record available.
Inventors
- 👤 John B Goldsborough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:41
CPC Classifications
C; C05; C05F; C05F17/00; C05F17/90; Y; Y02; Y02P; Y02P20/00; Y02P20/141; Y02P20/145; Y02W; Y02W30/00; Y02W30/40
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) | 1936-07-24 | 1937-01-23 | 1937-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-07-24 | 1941-01-23 | 1941-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-07-24 | 1945-01-23 | 1945-07-25 | $7700.00 | Window Closed / Lapsed |