US3477243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating system
Assignee: ADOLPH C SCHROEDER
•
Filing: 1968-01-04
•
Granted: 1969-11-11
•
Expires: 1988-01-04
Abstract
No abstract record available.
Inventors
- 👤 Adolph C Schroeder
- 👤 Nelton D Huck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:31
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/74; B65D88/745; F; F25; F25D; F25D15/00; F25D25/00; F25D25/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1068272A
Cited
US2546363A
Cited
DE825845C
Cited
US2775871A
Cited
US2812642A
Cited
US3178902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |