US3450073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservative injection machine
Assignee: Individual
•
Filing: 1967-06-21
•
Granted: 1969-06-17
•
Expires: 1987-06-21
Abstract
No abstract record available.
Inventors
- 👤 Roy E Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:32
CPC Classifications
B; B27; B27K; B27K3/00; B27K3/02; B27K3/08; B27K3/10; B27K3/105; B27K3/0235
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2789522A
Cited
US2730972A
Cited
US2833006A
Cited
US3084553A
Cited
US3054205A
Cited
US3136274A
Cited
US3113534A
Cited
US3397542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |