US2900337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weighting material
Assignee: Gulf Research and Development Co
•
Filing: 1956-12-20
•
Granted: 1959-08-18
•
Expires: 1976-12-20
Abstract
No abstract record available.
Inventors
- 👤 James W Earley
- 👤 William J Mcveagh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:10
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/32; Y; Y10; Y10S; Y10S507/00; Y10S507/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
WEIGHING MATERIAL CARRYING AN ADSORBED LAYER OF AN ORGANIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS REPRESENTED BY THE FOLLOWING GENERAL FORMULAE:
Claim 2
Dependent Claim
23 words
WEIGHING MATERIAL CARRYING AN ADSORBED LAYER OF AN ORGANIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS REPRESENTED BY THE FOLLOWING GENERAL FORMULAE:
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) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |