US2888112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel joints and panel joining devices
Assignee: Individual
•
Filing: 1956-04-13
•
Granted: 1959-05-26
•
Expires: 1976-04-13
Abstract
No abstract record available.
Inventors
- 👤 Robert R Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:31
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6145; E04B1/6158; E04B1/6166; E04B1/6175; F; F16; F16B; F16B5/00; F16B5/0004; F16B5/0056; F16B5/0076; F16B2200/00; F16B2200/50
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) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |