Patent US2771235A successfully refreshed from Google Patents.
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 20:14
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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 |