US2581816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener for butt joints
Assignee: Simmons Fastener Corp
•
Filing: 1948-08-17
•
Granted: 1952-01-08
•
Expires: 1968-08-17
Abstract
No abstract record available.
Inventors
- 👤 Schlueter Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:51
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6183; Y; Y10; Y10S; Y10S292/00; Y10S292/46; Y10S403/00; Y10S403/12; Y10T; Y10T292/00; Y10T292/08; Y10T292/1039; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T292/1085; Y10T292/68; Y10T403/00; Y10T403/59; Y10T403/597; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5173; Y10T70/5195; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5345; Y10T70/535; Y10T70/80; Y10T70/8432; Y10T70/8459
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US42994A
Cited
US296807A
Cited
US824652A
Cited
US835425A
Cited
US1148334A
Cited
US1550937A
Cited
US2340864A
Cited
US2423695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |