US2734343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
asketh
Assignee: —
•
Filing: —
•
Granted: 1956-02-14
•
Expires: 1973-02-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:52
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/52; E02D5/523; E02D15/00; E02D15/08; E02D23/00; E02D23/08; E02D23/14; E02D5/72; E02D7/00; E02D7/24; E03; E03B; E03B3/00; E03B3/06; E03B3/08; E03B3/10; E21; E21D; E21D1/00; E21D1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR744431A
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US255664A
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US460545A
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DE173767C
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US657951A
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US932261A
Cited
US933776A
Cited
US1038973A
Cited
US1488662A
Cited
US1710471A
Cited
US1709222A
Cited
US1645719A
Cited
US1682697A
Cited
US1907943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-13 | 1959-08-15 | 1960-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-13 | 1963-08-15 | 1964-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-13 | 1967-08-15 | 1968-02-14 | $7700.00 | Window Closed / Lapsed |