US2880470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structure blocks
Assignee: Individual
•
Filing: 1954-03-26
•
Granted: 1959-04-07
•
Expires: 1974-03-26
Abstract
No abstract record available.
Inventors
- 👤 Pickersgill Eleanor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:27
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/14; E04B2/16; E04B2/56; E04B2/70; E04B2/706; E04B2/709; E04B2002/0202; E04B2002/0204; E04B2002/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1316307A
Cited
US635423A
Cited
US699537A
Cited
US863493A
Cited
US854708A
Cited
US1087813A
Cited
US2330118A
Cited
US2311628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |