Patent US2927723A successfully refreshed from Google Patents.
US2927723A
Expired / Lapsed
US
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Reply letter sheet
Assignee: Individual
•
Filing: 1957-06-04
•
Granted: 1960-03-08
•
Expires: 1977-06-04
Abstract
No abstract record available.
Inventors
- 👤 Harold B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:54
CPC Classifications
B; B42; B42D; B42D15/00; B42D15/02; B42D15/04; B42D15/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR354759A
Cited
US1035109A
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US1370858A
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US1344071A
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US1438122A
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US1645148A
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US1874796A
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US1827468A
Cited
US1960054A
Cited
US2686005A
Cited
FR1063425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |