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US2548478A
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Apparatus for counting bacterial colonies
Assignee: Individual
•
Filing: 1949-05-19
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Granted: 1951-04-10
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Expires: 1969-05-19
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Kavanagh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:06
CPC Classifications
B; B43; B43K; B43K29/00; B43K29/08; C; C12; C12M; C12M41/00; C12M41/30; C12M41/36; G; G06; G06M; G06M11/00
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |