US3292196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic window washer devices
Assignee: Individual
•
Filing: 1964-06-22
•
Granted: 1966-12-20
•
Expires: 1984-06-22
Abstract
No abstract record available.
Inventors
- 👤 Betty J Windorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:02
CPC Classifications
A; A47; A47L; A47L1/00; A47L1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A CLEANING DEVICE FOR A WINDOW PANE COMPRISING AN HYDRAULICALLY ACTUATED MEANS, LIMIT SWITCH MEANS ADAPTED TO AUTOMATICALLY MOVE SAID HYDRAULICALLY ACTUATED MEANS THROUGH A CONTINUOUS UPWARD AND DOWNWARD MOVEMENT; A SPONGE IN CONTACT WITH PANE DURING SAID UPWARD AND DOWNWARD STROKE OF SAID HYDRAULICALLY ACTUATED MEANS ON A SUPPORT MEANS MOVABLY SUPPORTED ON SAID HYDRAULICALLY ACTUATED MEANS ADAPTED TO RECIPROCATE PERPENDICULARLY TO SAID HYDRAULICALLY ACTUATED MEANS AND A SQUEEGEE ADAPTED TO BE HELD FROM CONTACT WITH SAID PANE DURING THE UPWARD STROKE AND IN CONTACT WITH SAID PANE DURING THE DOWNWARD STROKE OF SAID HYDRAULICALLY ACTUATED MEANS HAVING SUPPORT MEANS MOVABLY SUPPORTED ON SAID HYDRAULICALLY ACTUATED MEANS ADAPTED TO RECIPROCATE PERPENDICULARLY TO SAID HYDRAULICALLY ACTUATED MEANS AND
Claim 2
Dependent Claim
118 words
A CLEANING DEVICE FOR A WINDOW PANE COMPRISING AN HYDRAULICALLY ACTUATED MEANS, LIMIT SWITCH MEANS ADAPTED TO AUTOMATICALLY MOVE SAID HYDRAULICALLY ACTUATED MEANS THROUGH A CONTINUOUS UPWARD AND DOWNWARD MOVEMENT; A SPONGE IN CONTACT WITH PANE DURING SAID UPWARD AND DOWNWARD STROKE OF SAID HYDRAULICALLY ACTUATED MEANS ON A SUPPORT MEANS MOVABLY SUPPORTED ON SAID HYDRAULICALLY ACTUATED MEANS ADAPTED TO RECIPROCATE PERPENDICULARLY TO SAID HYDRAULICALLY ACTUATED MEANS AND A SQUEEGEE ADAPTED TO BE HELD FROM CONTACT WITH SAID PANE DURING THE UPWARD STROKE AND IN CONTACT WITH SAID PANE DURING THE DOWNWARD STROKE OF SAID HYDRAULICALLY ACTUATED MEANS HAVING SUPPORT MEANS MOVABLY SUPPORTED ON SAID HYDRAULICALLY ACTUATED MEANS ADAPTED TO RECIPROCATE PERPENDICULARLY TO SAID HYDRAULICALLY ACTUATED MEANS AND
References Cited (Backward Citations)
US1431357A
Cited
US1840201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |