Patent US2627347A successfully refreshed from Google Patents.
US3157328A
Expired / Lapsed
US
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Method of and apparatus for cutting glass tubes
Assignee: Individual
•
Filing: 1959-09-17
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Granted: 1964-11-17
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Expires: 1979-09-17
Abstract
No abstract record available.
Inventors
- 👤 Hennings Werner
- 👤 Zimmermann Ehrenfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/09; C03B33/095; Y; Y10; Y10T; Y10T225/00; Y10T225/10; Y10T225/12; Y10T225/30; Y10T225/304; Y10T225/307; Y10T225/321
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
THAT METHOD OF SEVERING A GLASS TUBE COMPRISING, EFFECTING RELATIVE ROTATION BETWEEN THE TUBE AND A SCORING DEVICE TO EFFECT A CLOSED, ENDLESS, SCORED LINE EXTERIORLY OF, ON AND ABOUT THE TUBE LYING IN A PLANE NORMAL TO THE AXIS THEREOF, AND THEREAFTER APPLYING HEAT TO ONE POINT ONLY ON SAID LINE.
Claim 2
Dependent Claim
52 words
THAT METHOD OF SEVERING A GLASS TUBE COMPRISING, EFFECTING RELATIVE ROTATION BETWEEN THE TUBE AND A SCORING DEVICE TO EFFECT A CLOSED, ENDLESS, SCORED LINE EXTERIORLY OF, ON AND ABOUT THE TUBE LYING IN A PLANE NORMAL TO THE AXIS THEREOF, AND THEREAFTER APPLYING HEAT TO ONE POINT ONLY ON SAID LINE.
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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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |