US2029702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the digestion of industrial wastes
Assignee: Individual
•
Filing: 1932-01-23
•
Granted: 1936-02-04
•
Expires: 1952-01-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur M Buswell
- 👤 Clair S Boruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:24
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/28; C02F3/286; C12; C12M; C12M21/00; C12M21/04; C12M23/00; C12M23/58; C12P; C12P5/00; C12P5/02; C12P5/023; Y; Y02; Y02E; Y02E50/00; Y02E50/30; Y10; Y10S; Y10S435/00; Y10S435/813; Y10S435/819
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) | 1939-02-03 | 1939-08-05 | 1940-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-03 | 1943-08-05 | 1944-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-03 | 1947-08-05 | 1948-02-04 | $7700.00 | Window Closed / Lapsed |