US3430358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shrink tunnel with conveyer and air directing means
Assignee: Doughboy Industries Inc
•
Filing: 1967-01-30
•
Granted: 1969-03-04
•
Expires: 1987-01-30
Abstract
No abstract record available.
Inventors
- 👤 Stanley D Denker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:19
CPC Classifications
B; B65; B65B; B65B53/00; B65B53/02; B65B53/06; B65B53/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732631A
Cited
US3032944A
Cited
US3120728A
Cited
GB970406A
Cited
US3222800A
Cited
US3257769A
Cited
US3264752A
Cited
US3309789A
Cited
US3314158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |