US3272652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing film deposits
Assignee: Whirlpool Corp
•
Filing: 1964-11-12
•
Granted: 1966-09-13
•
Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 Donald C Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:46
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/44; A47L15/0002; A47L15/0007; A47L15/0018; A47L15/0055; A47L2601/00; A47L2601/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1870318A
Cited
US2008839A
Cited
US2424049A
Cited
US2395260A
Cited
GB647673A
Cited
US2825666A
Cited
US2766151A
Cited
US2884349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |