Patent US3589884A successfully refreshed from Google Patents.
US3589884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass bulbs and the like containers provided with self-breakable necks
Assignee: LABORAVER SARL
•
Filing: 1969-03-05
•
Granted: 1971-06-29
•
Expires: 1989-03-05
Abstract
Abstract A METHOD AND MEANS FOR OBTAINING A SELF-BREAKABLE BULB OR PHINAL, THAT IS A BULB OR PHIAL REQUIRING NO FILE FOR CUTTING IT OPEN; TO THIS END, THE EDGE F A BLADE OF SILVER, ALUMINIUM OR ALUMINIUM ALLOY IS URGAED AGAINST THE NECK OF THE CONTAINER DURING ITS COOLING SO AS TO LOCALLY INCREASE ITS CAPACITY OF THERMIC DISSIPATION AND TO CNSEQUENTLY PRODUCE AN INTERNAL STRAINING LEADING TO A GREATER BRITTLENESS. ADVANTAGEOUSLY THE BULB OR THE LIKE CONTAINER IS CAUSED TO REVOLVE ROUND ITS AXIS DURING THE PROCEDURE SO AS TO ENSURE AN ANNULAR MARKING WHEREBY THE NECK MAY BE BROKEN IN A CLEAN MANNER BY A FLEXIONAL STRESS EXERTED ON IT WHATEVER THE DIRECTION OF THE STRESS MAY BE.
Inventors
- 👤 Raymond Guiriec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:32
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/06; A; A61; A61M; A61M3/00; B; B67; B67B; B67B7/00; B67B7/92; C03B33/09; C03B33/095; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0405; Y10T83/041; Y10T83/0414
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |