Patent US3897578A successfully refreshed from Google Patents.
Patent US2717783A successfully refreshed from Google Patents.
US2717783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-supporting material distributing attachment
Assignee: Individual
•
Filing: 1951-07-23
•
Granted: 1955-09-13
•
Expires: 1971-07-23
Abstract
No abstract record available.
Inventors
- 👤 Allen R Flink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:15
CPC Classifications
B; B60; B60P; B60P3/00; E; E01; E01C; E01C19/00; E01C19/12; E01C19/15
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |