US2483656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined pestle and mercury dispensing apparatus
Assignee: Individual
•
Filing: 1945-11-19
•
Granted: 1949-10-04
•
Expires: 1965-11-19
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Marschalk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:02
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/60; A61C5/68; Y; Y10; Y10S; Y10S73/00; Y10S73/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US56063A
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US210360A
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US576992A
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US862630A
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US1365883A
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US1865850A
Cited
US1970198A
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US2203089A
Cited
US2281051A
Cited
US2331672A
Cited
US2392907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |