US2581318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable enclosure
Assignee: Individual
•
Filing: 1949-10-25
•
Granted: 1952-01-01
•
Expires: 1969-10-25
Abstract
No abstract record available.
Inventors
- 👤 Carl T Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:24
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/14; E04H17/16; E04H17/18; A; A01; A01K; A01K1/00; A01K1/02; A01K1/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US825137A
Cited
US1160728A
Cited
US1170794A
Cited
US1168836A
Cited
US1251926A
Cited
US1330404A
Cited
US2008637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |