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Patent US2500612A successfully refreshed from Google Patents.
US2500612A
Expired / Lapsed
US
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Identification device
Assignee: PAUL M VISSER
•
Filing: 1948-02-17
•
Granted: 1950-03-14
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Expires: 1968-02-17
Abstract
No abstract record available.
Inventors
- 👤 Kenneth K Krogh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:18
CPC Classifications
B; B42; B42D; B42D15/00; B42D15/0033; A; A61; A61B; A61B5/00; A61B5/117; A61B5/1171; A61B5/1172; B42D25/00; B42D25/20; B42D25/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2006744A
Cited
US878366A
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US1099731A
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US1374208A
Cited
US1667542A
Cited
US2035768A
Cited
US2016256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |