US2771235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced case
Assignee: Individual
•
Filing: 1949-07-11
•
Granted: 1956-11-20
•
Expires: 1969-07-11
Abstract
No abstract record available.
Inventors
- 👤 Robert P Stephenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:07
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/441; B65D5/445; B65D5/32; B65D5/322; B65D5/323
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US326705A
Cited
US1099808A
Cited
US1120955A
Cited
US1149925A
Cited
GB414787A
Cited
US2175476A
Cited
US2284385A
Cited
US2352994A
Cited
US2404065A
Cited
US2459939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |