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US2555192A
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Assignee: Individual
•
Filing: 1948-07-15
•
Granted: 1951-05-29
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Expires: 1968-07-15
Abstract
No abstract record available.
Inventors
- 👤 Ellis W Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:50
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/18; E06B7/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1313799A
Cited
US1731343A
Cited
US1709419A
Cited
US2062229A
Cited
US2167776A
Cited
US2516953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |