US4418702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for collecting saliva
Assignee: METPATH Inc
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Filing: 1981-12-17
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Granted: 1983-12-06
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Expires: 2001-12-17
Abstract
Abstract A method and apparatus for collecting saliva from a test subject comprises providing a flavored absorbent mass, such as a sponge, for mastication and charging with saliva and then expressing the saliva from the mass. Apparatus for this method comprises a barrel-piston arrangement in association with a specimen vial for storage until diagnostic testing.
Inventors
- 👤 Paul Brown
- 👤 Joseph O'Brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:19
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/0045; A61B10/0051
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
An apparatus for collecting a volume of saliva as a specimen from a test subject, comprising, (a) a collection vial for receiving saliva, said vial having an aperture at one end and a filter disposed across said aperture; (b) a hollow cylindrical barrel having first and second ends, the first end of said barrel being connected to said vial in a manner such that the filter covers the opening of said first end of said barrel; (c) a piston telescopically inserted into the second end of said barrel; (d) a storage space in said piston, said space having a mass of saliva-absorptive material disposed therein; and (e) a removable cap connected to said piston for enclosing said space.
Claim 2
Independent Claim
118 words
An apparatus for collecting a volume of saliva as a specimen from a test subject, comprising, (a) a collection vial for receiving saliva, said vial having an aperture at one end and a filter disposed across said aperture; (b) a hollow cylindrical barrel having first and second ends, the first end of said barrel being connected to said vial in a manner such that the filter covers the opening of said first end of said barrel; (c) a piston telescopically inserted into the second end of said barrel; (d) a storage space in said piston, said space having a mass of saliva-absorptive material disposed therein; and (e) a removable cap connected to said piston for enclosing said space.
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) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |