US2804980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stack of building blocks
Assignee: Individual
•
Filing: 1954-06-07
•
Granted: 1957-09-03
•
Expires: 1974-06-07
Abstract
No abstract record available.
Inventors
- 👤 Paul M Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:13
CPC Classifications
B; B65; B65B; B65B27/00; B65B27/02; B65D; B65D71/00; B65D71/0088; B65D85/00; B65D85/30; B65D85/46; B65D2571/00; B65D2571/00006; B65D2571/0008
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1373513A
Cited
US1444691A
Cited
US1561210A
Cited
US1846676A
Cited
US2017571A
Cited
US2119112A
Cited
US2284616A
Cited
US2635965A
Cited
US2662649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |