US2501359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible and contractible enclosure device
Assignee: Individual
•
Filing: 1946-03-27
•
Granted: 1950-03-21
•
Expires: 1966-03-27
Abstract
No abstract record available.
Inventors
- 👤 Homer O Stilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:19
CPC Classifications
A; A47; A47D; A47D13/00; A47D13/06; A47D13/061; A47D13/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US266606A
Cited
US540863A
Cited
US609491A
Cited
GB189811309A
Cited
US652645A
Cited
US678257A
Cited
US906148A
Cited
US1199825A
Cited
US1889572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |