US3273301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for wrapping and package produced
Assignee: WR Grace and Co
•
Filing: 1963-08-28
•
Granted: 1966-09-20
•
Expires: 1983-08-28
Abstract
No abstract record available.
Inventors
- 👤 Kelvin G Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:37
CPC Classifications
B; B65; B65B; B65B11/00; B65B11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A METHOD FOR WRAPPING AN OBJECT IN A SHEET OF ORGANIC THERMOPLASTIC FILM COMPRISING: (A) ROTATING THE OBJECT BETWEEN AT LEAST ONE PAIR OF DIAMETRICALLY OPPOSED ELECTRODES, (B) ESTABLISHING A HIGH VOLTAGE DIRECT CURRENT POTENTIAL BETWEEN EACH OF SAID ELECTRODE PAIRS, (C) FEEDING THE FILM SHEET BETWEEN THE OBJECT AND ONE OF THE ELECTRODES, AND (D) CONTINUING TO ROTATE THE OBJECT UNTIL THE SHEET IS OVERLAPPED TO FORM A TUBE AROUND THE OBJECT.
Claim 2
Independent Claim
73 words
A METHOD FOR WRAPPING AN OBJECT IN A SHEET OF ORGANIC THERMOPLASTIC FILM COMPRISING: (A) ROTATING THE OBJECT BETWEEN AT LEAST ONE PAIR OF DIAMETRICALLY OPPOSED ELECTRODES, (B) ESTABLISHING A HIGH VOLTAGE DIRECT CURRENT POTENTIAL BETWEEN EACH OF SAID ELECTRODE PAIRS, (C) FEEDING THE FILM SHEET BETWEEN THE OBJECT AND ONE OF THE ELECTRODES, AND (D) CONTINUING TO ROTATE THE OBJECT UNTIL THE SHEET IS OVERLAPPED TO FORM A TUBE AROUND THE OBJECT.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |