Patent US2767831A successfully refreshed from Google Patents.
US2767831A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1953-03-02
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Granted: 1956-10-23
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Expires: 1973-03-02
Abstract
No abstract record available.
Inventors
- 👤 Paul I Brecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:13
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/50; B65D85/52; B65D5/00; B65D5/0005; B65D5/42; B65D5/4204; B65D5/44; B65D5/50; B65D5/5028; B65D5/5035; B65D5/5059
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US577055A
Cited
US799593A
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US1581921A
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US1991478A
Cited
US2064707A
Cited
US2162089A
Cited
US2367706A
Cited
US2426911A
Cited
US2683953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |