US1145047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaning apparatus.
Assignee: SANTO Manufacturing Co
•
Filing: 1909-05-03
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Granted: 1915-07-06
•
Expires: 1929-05-03
Abstract
No abstract record available.
Inventors
- 👤 Theodore Wiedemann
- 👤 Joseph H Templin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:20
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/42; B01D46/4254; Y; Y10; Y10S; Y10S15/00; Y10S15/08; Y10T; Y10T292/00; Y10T292/20; Y10T292/221; Y10T292/223
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) | 1918-07-05 | 1919-01-04 | 1919-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-07-05 | 1923-01-04 | 1923-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-07-05 | 1927-01-04 | 1927-07-06 | $7700.00 | Window Closed / Lapsed |