US844734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum-pump.
Assignee: Individual
•
Filing: 1905-08-04
•
Granted: 1907-02-19
•
Expires: 1925-08-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Mullan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:34
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/22; F04B49/24; Y; Y10; Y10S; Y10S277/00; Y10S277/904
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) | 1910-02-18 | 1910-08-20 | 1911-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-02-18 | 1914-08-20 | 1915-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-02-18 | 1918-08-20 | 1919-02-19 | $7700.00 | Window Closed / Lapsed |