US3222925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the classification and evaluation of fallout from aerosols
Assignee: Individual
•
Filing: 1959-06-25
•
Granted: 1965-12-14
•
Expires: 1979-06-25
Abstract
No abstract record available.
Inventors
- 👤 Robert D Kracke
- 👤 Pfeiffer Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:35
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/02; G01N15/0255; G01N15/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A FALLOUT METER COMPRISING A PLATE HAVING AN UNOBSTRUCTED UPPER SURFACE AND HAVING AN ELONGATED SLOT THERETHROUGH, A SUPPORTING SURFACE POSITIONED CLOSELY ADJACENT AND BENEATH SAID PLATE, FLAT COLLECTING MEMBERS CARRIED BY SAID SUPPORTING SURFACE AND MEANS PRODUCING RELATIVE MOVEMENT BETWEEN SAID PLATE AND SAID SUPPORTING SURFACE AT A CONSTANT RATE IN A DIRECTION TRANSVERSE TO THE MAJOR DIMENSION OF SAID SLOT, SAID SLOT BEING SO PROPOR-
Claim 2
Dependent Claim
67 words
A FALLOUT METER COMPRISING A PLATE HAVING AN UNOBSTRUCTED UPPER SURFACE AND HAVING AN ELONGATED SLOT THERETHROUGH, A SUPPORTING SURFACE POSITIONED CLOSELY ADJACENT AND BENEATH SAID PLATE, FLAT COLLECTING MEMBERS CARRIED BY SAID SUPPORTING SURFACE AND MEANS PRODUCING RELATIVE MOVEMENT BETWEEN SAID PLATE AND SAID SUPPORTING SURFACE AT A CONSTANT RATE IN A DIRECTION TRANSVERSE TO THE MAJOR DIMENSION OF SAID SLOT, SAID SLOT BEING SO PROPOR-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |