Patent US5100863A successfully refreshed from Google Patents.
Patent US3315684A successfully refreshed from Google Patents.
US3315684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filing systems
Assignee: Individual
•
Filing: 1965-10-13
•
Granted: 1967-04-25
•
Expires: 1985-10-13
Abstract
No abstract record available.
Inventors
- 👤 Henry J Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:09
CPC Classifications
B; B42; B42F; B42F5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US915910A
Cited
US1847825A
Cited
GB502468A
Cited
US2609613A
Cited
US2560725A
Cited
US2964042A
Cited
US3087498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |