US3314819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for cleaning venetian blinds
Assignee: Individual
•
Filing: 1962-09-28
•
Granted: 1967-04-18
•
Expires: 1982-09-28
Abstract
No abstract record available.
Inventors
- 👤 Andrew L Dyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:02
CPC Classifications
A; A47; A47L; A47L4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A METHOD OF CLEANING A VENETIAN BLIND WITHOUT REMOVING IT FROM ITS NORMAL OPERATIVE POSITION, SAID METHOD INCLUDING THE STEPS OF CLOSING SAID BLIND TO BRING THE SLATS INTO VERTICAL POSITION, PULLING THE BLIND UP UNTIL ONLY A DESIRED NUMBER OF UPPER SLATS REMAIN IN VERTICAL POSITION, PLACING THE COLLAPSED SLATS IN A CLEANING UNIT AND REMOVING THE TENSION ON THE RAISING COR, MOVING SAID UNIT FROM END TO END ACROSS THE VERTICAL SLATS TO CLEAN BOTH SIDES THEREOF, LOWERING SAID UNIT TO AUTOMATICALLY RELEASE ANOTHER SERIES OF SLATS INTO VERTICAL POSITION, REPEATING SAID PROCESS UNTIL THE LOWEST SLATS HAVE BEEN CLEANED AND THEN REMOVING THESE SLATS FROM SAID UNIT.
Claim 2
Independent Claim
110 words
A METHOD OF CLEANING A VENETIAN BLIND WITHOUT REMOVING IT FROM ITS NORMAL OPERATIVE POSITION, SAID METHOD INCLUDING THE STEPS OF CLOSING SAID BLIND TO BRING THE SLATS INTO VERTICAL POSITION, PULLING THE BLIND UP UNTIL ONLY A DESIRED NUMBER OF UPPER SLATS REMAIN IN VERTICAL POSITION, PLACING THE COLLAPSED SLATS IN A CLEANING UNIT AND REMOVING THE TENSION ON THE RAISING COR, MOVING SAID UNIT FROM END TO END ACROSS THE VERTICAL SLATS TO CLEAN BOTH SIDES THEREOF, LOWERING SAID UNIT TO AUTOMATICALLY RELEASE ANOTHER SERIES OF SLATS INTO VERTICAL POSITION, REPEATING SAID PROCESS UNTIL THE LOWEST SLATS HAVE BEEN CLEANED AND THEN REMOVING THESE SLATS FROM SAID UNIT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |