US3303613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Farm gate
Assignee: Individual
•
Filing: 1965-02-04
•
Granted: 1967-02-14
•
Expires: 1985-02-04
Abstract
No abstract record available.
Inventors
- 👤 Ronald P Seuntjens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:21
CPC Classifications
E; E06; E06B; E06B11/00; E06B11/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US645842A
Cited
US1132821A
Cited
US1499120A
Cited
GB297120A
Cited
US2007071A
Cited
US2024063A
Cited
US2585481A
Cited
US2713737A
Cited
US3089267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |