US3508680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for metering and dispensing materials
Assignee: Individual
•
Filing: 1968-06-03
•
Granted: 1970-04-28
•
Expires: 1988-06-03
Abstract
No abstract record available.
Inventors
- 👤 John N Ewald Jr
- 👤 Donald A Schuldt
- 👤 James H Casey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:47
CPC Classifications
B; B65; B65G; B65G47/00; B65G2811/00; B65G2811/06; B65G2811/0673; B65G2811/0689; B65G2811/0694
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2233466A
Cited
US3096908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |