Patent CH164493A successfully refreshed from Google Patents.
Patent US1570370A successfully refreshed from Google Patents.
US1570370A
Expired / Lapsed
US
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Suction apparatus
Assignee: Individual
•
Filing: 1922-08-22
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Granted: 1926-01-19
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Expires: 1942-08-22
Abstract
No abstract record available.
Inventors
- 👤 Brodersen Laust
- 👤 Steppinge Max Edlef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:06
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/08; A61M1/80; A61M1/81; F; F16; F16K; F16K15/00; F16K15/14; F16K15/1401; F16K15/141; F16K15/142; F16K15/144; F16K15/145; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7887; Y10T137/7888; Y10T137/7889
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) | 1929-01-18 | 1929-07-20 | 1930-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-01-18 | 1933-07-20 | 1934-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-01-18 | 1937-07-20 | 1938-01-19 | $7700.00 | Window Closed / Lapsed |