Patent US2503045A successfully refreshed from Google Patents.
US2503045A
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Sputum cup
Assignee: MILWAUKEE LACE PAPER Co
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Filing: 1946-10-31
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Granted: 1950-04-04
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Expires: 1966-10-31
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:42
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/14; B65D43/16; B65D43/163; A; A61; A61J; A61J19/00; A61J19/06; B65D25/00; B65D25/02; B65D3/00; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00037; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00537; B65D2543/00546; B65D2543/00824; B65D2543/00833; B65D2543/00842
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US317997A
Cited
US1027924A
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US1031648A
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US1217599A
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US1497159A
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US2171748A
Cited
US2167111A
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US2339665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-03 | 1953-10-03 | 1954-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-03 | 1957-10-03 | 1958-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-03 | 1961-10-03 | 1962-04-04 | $7700.00 | Window Closed / Lapsed |