US2605953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow-walled box
Assignee: Individual
•
Filing: 1951-06-19
•
Granted: 1952-08-05
•
Expires: 1971-06-19
Abstract
No abstract record available.
Inventors
- 👤 Marshall I Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:15
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/20; B65D5/2004; B65D5/2009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1421526A
Cited
GB453180A
Cited
US2214813A
Cited
US2398155A
Cited
US2444497A
Cited
US2529147A
Cited
US2493189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |