US3129740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified toric free drop container
Assignee: Individual
•
Filing: 1962-06-18
•
Granted: 1964-04-21
•
Expires: 1982-06-18
Abstract
No abstract record available.
Inventors
- 👤 Jess H Nourse
- 👤 William B Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:44
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
IN A FREE DROP CONTAINER, A HOLLOW TORIC FLUID CONTAINER FORMED OF FLEXIBLE SHEET MATERIAL, AN INVERTED FRUSTOCONICAL SKIRT SURROUNDING SAID CONTAINER CONCENTRICALLY THEREOF TO PROVIDE AN ANNULAR FIN, SAID FIN BEING HOLLOW AND BEING DEFINED BY UPPER AND LOWER WALLS CONVERGING IN UPWARD AND OUTWARD DIRECTIONS, AND SAID WALLS BEING FORMED OF FLEXIBLE SHEET MATERIAL.
Claim 2
Dependent Claim
56 words
IN A FREE DROP CONTAINER, A HOLLOW TORIC FLUID CONTAINER FORMED OF FLEXIBLE SHEET MATERIAL, AN INVERTED FRUSTOCONICAL SKIRT SURROUNDING SAID CONTAINER CONCENTRICALLY THEREOF TO PROVIDE AN ANNULAR FIN, SAID FIN BEING HOLLOW AND BEING DEFINED BY UPPER AND LOWER WALLS CONVERGING IN UPWARD AND OUTWARD DIRECTIONS, AND SAID WALLS BEING FORMED OF FLEXIBLE SHEET MATERIAL.
References Cited (Backward Citations)
US2854049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |