US2933167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel joints and panel joining devices
Assignee: Individual
•
Filing: 1955-10-04
•
Granted: 1960-04-19
•
Expires: 1975-10-04
Abstract
No abstract record available.
Inventors
- 👤 Robert R Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:49
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6166; E04B1/6175; E04B1/6145; E04B1/6158; F; F16; F16B; F16B5/00; F16B5/0004; F16B5/0056; F16B5/0076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |