Patent US2743836A successfully refreshed from Google Patents.
US2743836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roberts
Assignee: —
•
Filing: —
•
Granted: 1956-05-01
•
Expires: 1973-05-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:51
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/04; B65D77/0446; B65D25/00; B65D25/28; B65D25/32; B65D7/00; B65D7/12; B65D7/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US266617A
Cited
US662801A
Cited
US738301A
Cited
US1585032A
Cited
US1731625A
Cited
US1759723A
Cited
US1998681A
Cited
US1994553A
Cited
US2050980A
Cited
US2049884A
Cited
US2179981A
Cited
US2337923A
Cited
US2550355A
Cited
US2615749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |