Patent DE898164C successfully refreshed from Google Patents.
Patent US3184780A successfully refreshed from Google Patents.
US3184780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning tool
Assignee: Whirlpool Corp
•
Filing: 1961-11-13
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Granted: 1965-05-25
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Expires: 1981-11-13
Abstract
No abstract record available.
Inventors
- 👤 James R Hageman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:54
CPC Classifications
A; A47; A47L; A47L1/00; A47L1/06; A47L1/08; A47L13/00; A47L13/10; A47L13/20; A47L13/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A CLEANING TOOL COMPRISING, AN ELONGATED MAIN BODY PORTION HAVING A PUMPING CHAMBER FORMED THEREIN INCLUDING CHECK VALVES AND AN ELASTIC WALL PORTION, MEANS TO FLEX SAID ELASTIC WALL PORTION TO DEVELOP A PUMPING ACTION, SAID MAIN BODY PORTION HAVING A PASSAGE FOR RECEIVING THE FLUID DISCHARGE BY SAID PUMPING ACTION AND FORMING A RESERVOIR FOR FLUID IN SAID TOOL, SAID BODY PORTION HAVING A WASHER HEAD AT THE END OF SAID PASSAGE, SAID WASHER HEAD HAVING A RECESS FORMED THEREIN, A PLATE MEMBER HAVING A CENTRALLY DISPOSED PASSAGE FORMED THEREIN AND EXTENDING ACROSS THE BOTTOM OF SAID RECESS,
Claim 2
Dependent Claim
99 words
A CLEANING TOOL COMPRISING, AN ELONGATED MAIN BODY PORTION HAVING A PUMPING CHAMBER FORMED THEREIN INCLUDING CHECK VALVES AND AN ELASTIC WALL PORTION, MEANS TO FLEX SAID ELASTIC WALL PORTION TO DEVELOP A PUMPING ACTION, SAID MAIN BODY PORTION HAVING A PASSAGE FOR RECEIVING THE FLUID DISCHARGE BY SAID PUMPING ACTION AND FORMING A RESERVOIR FOR FLUID IN SAID TOOL, SAID BODY PORTION HAVING A WASHER HEAD AT THE END OF SAID PASSAGE, SAID WASHER HEAD HAVING A RECESS FORMED THEREIN, A PLATE MEMBER HAVING A CENTRALLY DISPOSED PASSAGE FORMED THEREIN AND EXTENDING ACROSS THE BOTTOM OF SAID RECESS,
References Cited (Backward Citations)
US622809A
Cited
US1086618A
Cited
US954541A
Cited
US844700A
Cited
US864953A
Cited
US1535304A
Cited
US1690472A
Cited
US1661480A
Cited
US1821715A
Cited
US1929345A
Cited
US2618002A
Cited
US2785425A
Cited
US2770828A
Cited
US2746071A
Cited
US2909800A
Cited
US2976560A
Cited
US2893044A
Cited
US2932043A
Cited
US2960040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |